According to the characteristics of materials, the application of different processing material W and the preparation method of the case

According to the characteristics of tungsten materials, processing materials , different applications have traditionally divided into three categories of cases and preparation methods : ① pure tungsten and tungsten alloy products in the usual sense , including pure tungsten, doped tungsten, tungsten male , ornaments tungsten and tungsten alloys Lai , whose main products are wire and rods . This is the largest tungsten processing timber species and number of a class of products . ② The second category is a high -density tungsten alloy , mainly of tungsten and tungsten nickel-copper- nickel- iron two series , its application is the use of its high density and high strength properties. ③ The third category is tungsten, copper,  tungsten carbide plate  material, particularly tungsten, copper materials, processing materials are tungsten relatively small amount of a class of article , however , there is considerable development in recent years . In recent decades , tungsten copper material , whether done a lot of work from the application, production and  tungsten balls  , and has made many significant progress : Before the 1960s , most of the products are as high tungsten copper , medium voltage electrical switch electrical contacts using a small amount used for resistance welding electrodes ; 60 to the beginning of the last century, the 1970s , the development of EDM , because tungsten copper material excellent resistance to spark erosion effect , and gradually began to be used as electrical spark electrode material processing machine , to the last century, 80 to 90 years , widening their application and mature , a significant amount of growth in the application ;

its high temperature resistance, low temperature resistance

Chromium-molybdenum alloy chromium-molybdenum alloy pipe tube 15 is a seamless, its performance is much higher than the average of seamless steel tubes, because the steel contains Cr more inside, its high temperature resistance, low tungsten carbide plate resistance, corrosion resistance seamless smaller than the other, so the alloy tube in the petroleum, chemical, electric power, boiler and other industries use more widely. 15 Cr-Mo alloy pipe principle of purified hydrogen at 300-500 ℃, the purification of the hydrogen to be introduced into chrome molybdenum alloy tube 15 side, the hydrogen is adsorbed on the wall 15 chromium-molybdenum alloy, the palladium 4d lack of two electron shells, which can generate instability in the hydrogen bond (palladium and hydrogen this reaction is reversible), the role of the palladium, hydrogen is ionized proton radius of 1.5 × 1015m, while palladium the lattice constant of 3.88 × 10-10m (20 ℃), the so by 15 Cr-Mo alloy pipe, under the action of the palladium and proton and electron binding and re-form hydrogen molecules from the 15 Cr-Mo alloy tube to another side to escape. In the 15 chromium-molybdenum alloy tube surface, not dissociated gas is impermeable, it can take advantage of 15 chromium-molybdenum alloy tube to obtain high purity hydrogen. Although palladium to hydrogen permeability has a unique, 15 Cr-Mo alloy pipe pure palladium but poor mechanical properties, high temperature oxidation, the recrystallization temperature is low, easy to make the 15 Cr-Mo alloy pipe] deformation and brittle, and therefore can not be used pure palladium as through the membrane. Add the proper amount of palladium and Ⅷ Group IB elements, made ??of palladium alloy, palladium can improve the mechanical properties of 11 automobile axle casing seamless pipe (GB3088-82) is manufactured automobile axle casing and the drive axle axle shaft tubes of high-quality carbon structural steel and alloy steel seamless hot-rolled palladium alloys, silver accounting for 20-30%, other ingredients (such as gold, etc.) content of <5%

China's tungsten mining production

After several years of development, China's tungsten mining expanding production scale, technology development capability, market competitiveness has reached a certain level, to the needs of users at home and abroad the production of various tungsten minerals, has made great achievements. In 2006, China's tungsten industry sales income 311 million yuan, sales profit of 6.4 billion yuan, an increase of 7% over 2005. 91 major companies nationwide sales of tungsten carbide plate industry accounted for 63.0%, compared with 2005 growth of 20 percent, including mining, smelting, tungsten carbide, tungsten metal and tungsten iron enterprise sales revenue increased by 22.4%, 20.5%, 16.5 %, 11.7% and 7.4%. 2006 Chinese exports of tungsten 31,710.45 tons, only a 1.8% increase over 2005, an increase of 10.7 percentage points mitigation; exports of 1.09 billion U.S. dollars, an increase of 36.3% over 2005. Imports 7,890.9 tons, an increase of 71.5% over 2005; imports amounted to $ 202 million, an increase of 108.2% over 2005. Net export volume of 23,819.6 tons, 10.3 percent less than in 2005; net exports of $ 888 million, up 26% over 2005. 2006 exports of tungsten equivalent to one ton in 2002, 2003, 4 tons in 2004, 3 tons, 1.3 tons in 2005. First half of 2007, China's tungsten industry production and operation showing a steady and rapid development momentum. 2007 1-6 months, the national output of 40,309 tons of tungsten concentrate (equivalent WO365% volume, the same below), an increase of 18.65% over the previous year. January to June 2007, total export volume of 15,343.8 tons of tungsten metal products, compared with 2006 growth of 8% over the same period, exports 535 million U.S. dollars, an increase of 91.7%. Total imports of tungsten products (including concentrates) metal content of 3430.2 tons, and imports $ 85,335,000, respectively, over the same period in 2006, an increase of 87.5% and 121.9%. Export Carbide 1245.6 tons, a growth of 17.06 percent over the same period, exports $ 479,747,700, down 4.52%, the average export price of $ 385,153.9 / ton, down 18.4%. Chinese tungsten ore resources are monopolized, but did not get monopoly profits. The reason is that Chinese exports of tungsten product structure is irrational, excessive exports, low prices. Primary products with low added value export-oriented, is currently China Tungsten Industry Foreign Trade fatal weakness. With the development of the market, China's tungsten industry gradually complete product varieties, the market structure and the industrial layout slowly norms, tungsten products prices also rose more than two years after the basic stabilized. After 2008, industry consolidation may be accelerated, and this process also pregnant with greater investment opportunities.

The best growth in demand for tungsten carbide field areas

According to Voice of the economy "Transaction live" reports, analyst at Huatai Nonferrous Metal Industry Liu guest "trading live" as we interpret the investment value of tungsten ore, tungsten ore Liu considered the best future growth in demand or in the carbide fields. Moderator: Can you explain the specific carbide is used in what areas will be used? Liu: Hard alloy system has three major application areas, the first is industrial processing tool, and the second is used to open the mine oilfield drilling, and the third is commonly used in industrial wear parts. Moderator: Can you explain the specific carbide is used in what areas will be used? Liu: Hard alloy system has three major application areas, the first is industrial processing tool, and the second is used to open the mine oilfield drilling, and the third is commonly used in industrial wear parts. Moderator: Carbide or in addition to this demand than other areas in the downstream tungsten carbide plate ore demand growth there is a large space which is not, in addition to carbide outside? Liu: Other areas include them in special steel as the tungsten additive; Also in some chemical categories were also put tungsten as an additive or catalyst, in addition to doing the other is tungsten carbide, also made of alloy and other metals used in many business processing materials; additional lighting in the area is used for tungsten wire, tungsten materials, future growth in demand for the best or in the field of carbide, as China gradually to the machining tool is present stage of high-end forward, basically in other areas and national economic growth will keep pace steady growth. Moderator: At present, China's tungsten industry chain development is kind of how it? Liu: The so-called high-end forward is that in the end the finished tool above, such as Israel on the machine, the original are used in traditional ordinary machining tools, the current relatively high-end digital processing machine tool consumption among the proportion has increased significantly, the traditional machine tool may gradually decline, the future may be more high-end coated tool bit conversion tool is to use hard tungsten production, consumers will have certainly a very significant increase in the current number of major tool manufacturers are also on the new production line is mainly invested in coated tool above.

semi-annual report 2012 EPS is expected to be 0.21 yuan

Tungsten products during the first half of 2012 demand downturn, the company reduced the amount of products drop in price, semi-annual report 2012 EPS is expected to be 0.21 yuan, down 30%. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal.
Chapter Tungsten release 2012 first half results notice, to achieve revenue 880,870,000 yuan, down 9.51%, attributable to shareholders of listed companies net profit of 90.428 million yuan, down 28.88%, earnings per share of 0.21 yuan. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal.
Sluggish downstream demand, product volume and price were down. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Since the beginning of 2012 tungsten, APT, tungsten powder average price of 128,300 yuan / ton, 200,000 yuan / ton, 324,600 yuan / ton, down 5.35 percent year on year respectively, 4.27%, 2%. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Meanwhile, by the impact of the economic downturn at home and abroad, tungsten carbide plate market demand weakened, product sales declined compared to the same period last year. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Product sales and falling prices, resulting in revenues and profits fell.
Tungsten products during the first half of 2012 demand downturn, the company reduced the amount of products drop in price, semi-annual report 2012 EPS is expected to be 0.21 yuan, down 30%. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal.
Chapter Tungsten release 2012 first half results notice, to achieve revenue 880,870,000 yuan, down 9.51%, attributable to shareholders of listed companies net profit of 90.428 million yuan, down 28.88%, earnings per share of 0.21 yuan. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal.
Sluggish downstream demand, product volume and price were down. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Since the beginning of 2012 tungsten, APT, tungsten powder average price of 128,300 yuan / ton, 200,000 yuan / ton, 324,600 yuan / ton, down 5.35 percent year on year respectively, 4.27%, 2%. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Meanwhile, by the impact of the economic downturn at home and abroad, tungsten market demand weakened, product sales declined compared to the same period last year. Copper Lead Zinc Tin CNMN.COM.CN nickel, China Nonferrous network, a small metal, scrap metal. Product sales and falling prices, resulting in revenues and profits fell.

are better than Mountain Pass, which is a hard fact."

Marong Zhang also pointed out that the above analysis has not been considered by the Chinese rare earth export quotas and export tariffs effect "when considering these two factors, the domestic rare earth products in the international market to increase the cost of about 20%."
But Zhang said the Mountain Pass mine in Bayan Obo ore reserves only "a few tenth", "partition on Mountain Pass Baiyunebo nor worse than that." In addition, although the Bayan Obo mine cut-off grade is low, but the "highest grade can reach 17% to 18%, some even higher," "no matter which side, are better than Mountain Pass, which is a hard fact."
He also cited the company's publicly available data Linus: Linus annual capacity of 22,000 tons, the product cash cost of 14-15 USD / kg (oxide), equivalent to about 90,000 yuan / ton, but only when the company put into production, the cost can be further reduced. "But all of production now seems elusive. 90,000 yuan / ton light rare earth ore, and domestic enterprises, especially the Baotou Rare Earth, compared to a lot higher." Zhang said.
A rare earth industry experts said Bayan Obo mine also has the advantage that it can be "mined with iron", which is very rare, and almost all foreign rare earth ore is rare for a single product items. "Is equivalent to the refining of rare earth iron waste of Baotou Steel Group is concerned, is tantamount to 'recycling' low cost is normal."
The expert told reporters, "but other Chinese rare earth mining business costs, can not follow the conditions of the Baotou Rare Earth to count." He believes that Marong Zhang and Zhang is not the same angle of the station, "are justified."
Many projects to China
Looking for partners
"If in 2011 the stock market last longer some more projects abroad early on. ...... Now the price, foreign to continue to overweight (capacity), or will first consider what is."
"If in 2011 the stock market last longer some more projects abroad early on." The expert said, "Now the price abroad to continue to overweight (capacity), or will first consider what is."
Since last year, the global economic slowdown, also downstream rare earth industry downturn, coupled with soaring prices of rare earth in 2011 really made application of rare earth enterprises to eat boring boxing, rare earth prices has basically come down to the level of the initial price.
"June 2011 is the highest point of rare-earth prices, the profit level reached the highest value product now withering profit margins, the tungsten carbide plate price level for Chinese enterprises, there is a certain profit margin, for foreign rare earth project is difficult for the Relay. "Zhang said some foreign in the exploration phase of the project most difficult, a lot of projects to China looking for partners.
Zhang analysis, due to oversupply of light rare earth products, especially products of lanthanum and cerium, in the current price trend, the large-scale expansion will further squeeze profit margins.
Cost and price of course is to determine the main factors of production, but experts have warned that the rare earth industry, and foreign difference is that Chinese enterprises is not enough emphasis on sustainable development.
"Everybody says that some foreign ore before discontinued because of cost competition, but China, environmental costs far higher than China, etc. But I think, if not profitable, not mine so many years ago, after all, is not environmentally friendly from 2002 (Note: Mans Pass mine shut down in 2002) began. "he said.
"Since the (Chinese) have cheap rare earth, why do I still mined? Keep for future re-sell it more expensive!" He said, "like rare earths such resources, will certainly keep price increases because it is not the same and iron , are non-renewable, recycling is only part not 100% recycled. "
Policy is difficult to break
The scope of the 12th Man
Continue to join the ranks of rare earth industry, the company will intensify competition in the market worldwide, "the world's rare earth price war is inevitable."
June 2012, the State Council Information Office published entitled "China's rare earth conditions and policies," the White Paper: "23% of China's rare earth resources to bear more than 90% of the world market supply." Meaning behind this statement is that China at the same time in the development of rare earth industry, the need to protect resources and the environment to the position of the premise.
When the project started abroad increased supply, obviously, the entrepreneur himself.

WT20 thorium tungsten electrode tungsten needle commonly used chemical composition and grade

Pure tungsten carbide plate electrode W1 W ≥ 99.92 SiO2 ≤ 0.03 Fe2O3Al2 ≤ 0.03 Mo ≤ 0.01 CaO
Thoriated tungsten electrode WTH-7 W margin other impurities is not more than the total mass fraction of 0.15%
Cerium tungsten WCe-20 W margin CeO1.8-2.2 SiO2 ≤ 0.06 Fe2O3AI2O3 ≤ 0.02 Mo ≤ 0.01 CaO ≤ 0.01
Cerium tungsten low electron work function, high chemical stability, allowing current density, non-radioactive, are now widely used in an electrode of pure tungsten high melting and boiling points, easy to melt evaporation, burning, cutting-edge, less pollution, However, poor electron emission, is not conducive to the stability of the arc burning.
Thorium tungsten electron emission capability, allowing high current density arc burning more stable, but with a certain radioactive elements thorium, promote the application be affected.
Zirconium tungsten electrode must be protected from contamination on the base metal under special conditions, you can use this tungsten. This easy to maintain the hemispherical tip of the electrode, suitable for AC welding strip, welcomed the consultationThorium tungsten electron emission capability, allowing high current density arc burning more stable, but with a certain radioactive elements thorium, promote the application be affected.
    Zirconium tungsten electrode must be protected from contamination on the base metal under special conditions, you can use this tungsten. This easy to maintain the hemispherical tip of the electrode, suitable for AC welding pieces, quality assurance, welcome to consult the discussion

we are now quoted at $ 246 / metric ton." Jiangxi an exporter

Market View messages according to producers and traders, tungsten carbide plate carbide market prices stable, trading volume has increased, it is expected this week, the market is expected to remain strong.Domestic 99.7% tungsten price maintained at 206-208 yuan / kg. Hunan, a smelter, said: "The current from the downstream industries such as construction and alloys increased demand for tungsten carbide, and now a lot of people offer has more than 205 yuan / kg, there are some reported out of 210 yuan / kg high prices.Jiangxi, a smelter cautioned that although it is the traditional off-season, but the fundamentals remain the automotive industry needs. He said the supply of tungsten carbide in Shanghai Baosteel Group total to remain stable. Meanwhile, tungsten carbide export market prices remain at 30.50-31.50 U.S. dollars / kg unchanged. Export quotas established by the new policy, and the global steel and chemical industries driven recovery, tungsten oxide apparent improvement in the export market. Tungsten oxide export price in the 238-246 U.S. dollars / ton degrees.Hunan, a trader said: "I ​​recently received several customer inquiry from Southeast Asia, we are now quoted at $ 246 / metric ton." Jiangxi an exporter, said: "Most of the tungsten smelters markets for the future very optimistic, I think the next few weeks prices are expected to maintain a slow upward trend in the past two weeks, the average transaction price of tungsten oxide was $ 245 / metric ton. "Meanwhile, due to heavy rains and landslides, the domestic demand is relatively calm tungsten oxide, 99.95 % Specification tungsten oxide prices 150,000-153,000 yuan / ton. A manufacturer of Jiangxi capacity 200 tons per month, he revealed and old customers demand is stable, their weekly sales are maintained at 60 tons. Tungsten carbide powder particles in price stability in the 206-208 yuan / kg, the price level depends on the amount purchased. "We are now at full capacity, orders are scheduled end of September," the producer said that because the production arrangements are very full, they pull off some inquiry. The manufacturer said the APT price 131,000-132,000 yuan / ton remain strong, high production costs will support prices to maintain the existing level of tungsten carbide powder. He believes that the recent market will remain stable. A monthly capacity of Hunan manufacturer 70 tons to 206 yuan they / kg price sold

micro welding head, Haba head, hyperbaric welding head.

Welding head, also called HOT BAR head, pulsed hot soldering head \ hot heads, hot welding head, hot welding head, the product is used in pulse welding machine, welding heater is pulsed through tungsten carbide plate transmitted pulse current heating, the joint is located in the close contact state, and there is no heat effect on the surrounding devices.
Mainly used for welding thin coaxial I-PEX, FPC, FFC and PCB soldering, LCD, and the ACF of TCP connections, HDMI, M INI USB connector such as welding, Teflon wire directly connected to the terminals, plasticity plastic heat bonding, etc. The use of the welding Weld phenomenon does not occur, it is possible to achieve a multi-point welding, you can not take account of the operator skills to ensure the welding quality. Also, the temperature can be real in the present, to ensure that required high precision welding end products.
Our company specializes in the production soldering head, pulse welding nozzle, pulse hot head, pressure welding tip, touch welding tip, hot tip, AVIO pressure welding head, wire welding head, SMD welding head, hot exhaust wire welding head, TC hot welding head, titanium hot head, power inductors welding head, micro welding head, Haba head, hyperbaric welding head.
My company can achieve a variety of difficult shaped, precision, common parts and components.
Our company produces micro-welding electrode (pulse hot soldering head). Used in Japan AVIO Company / Malaysia, USA, Germany and other vendors pulse hot soldering machines, widely used in high / low frequency winding inductance welding (SMD), welding cables, by the majority of users, fully meet the production requirements, comparable with the imported products.Security: sodium molybdate toxic, but low toxicity compounds. Molybdenum poisoning can cause joint pain, caused by low blood pressure and blood pressure fluctuations, neurological disorders, metabolic processes obstacles. Soluble Molybdenum tube compound aerosol maximum allowable concentration of 2mg / m, the dust is 4mg / m. Access and use of sodium molybdate, be required to wear protective equipment. Pay attention to moisture. Transportation beware of rain, sun.
Usage: for the manufacture of alkaloids, inks, fertilizers, molybdenum red pigments, and lightfast pigments precipitation agent, catalyst, molybdenum salts, can also be used to make flame retardants and metal pollution-free water system inhibitor, but also for coating zinc, polishing agents and chemical reagents.

Ring automatic plating line

(A) the characteristics of the annular automatic plating line
    Ring automatic plating line is characterized by the production process are in the process tanks load condition, and thus high efficiency, suitable for the production of large quantities, mature tungsten carbide plate products, but the mechanical structure is more complex, more investment, changing the process difficult. Automatic Online linked with each ring is a beat, moving some distance, fixed lift, the plating is with sequential forward, therefore, the arrangement of plating tank placed entirely based process design layout into a U-shaped arrangement.
    Automatic line in the ring, the plating tank layout and length are according to the technical specifications may be, that first process sequence and processing time after the decision to install an annular arrangement of automatic line. If you want to change the process, you must refit the plating tank and parts, more complex and difficult, it is a decision by the process, they can not be easily changed.
    (2) the ring gear automatic line
    Mooring ring automatic line lifting cylinder shoulder hanging down, the level of progress, linked to a horizontal cylinder shoulder from moving, synchronizing cylinder lift cylinder to ensure synchronous lifting, lifting frame also lift. Synchronous cylinders mounted on the pump stage, horizontal cylinders mounted on the automatic line framework, the lift cylinder is a three-tier telescopic cylinders, the inner and outer sleeve does not move, the sleeve is the piston. This structure, although demanding to fabricate Ni can reduce fuel work, but more importantly you can ensure that the piston rigid, process tanks at the end of each station are vacancies for hanging tools and parts before ready to use more slots, hanging only out of the first tank, tail lift stations have more slots on the action.
   Finger movement sequence is rising to the height of the rack when the finger whereabouts (plus transfer the role of institutions in the horizontal cylinder), the toggle is hanging over several slots. Down to the lower rack, the horizontal cylinder two movements, the toggle is part of the deal hanging in the tank, the more slots have been allocated claws hanging above will be automatically filed, can not afford to toggle role Therefore, when the level of the mobile rack up once, down time and horizontal movement of the rack once. This cycle of action, completed a beat.
    Bridge is now more commonly used hydraulic lift mechanism annular automatic line more, the advantages of hydraulic transmission is relatively stable, simple structure, but the drawback is that there is leakage problems, to be a good improvement.

Professional production of environmentally friendly high-density tungsten alloy fishing sinker,

tungsten carbide plate  balls, golf with weights, tungsten steel strap and a variety of high-density tungsten alloy and copper tungsten alloy products. My company has abundant capital, advanced production technology and strict quality management and technical support domestic famous universities. Products are exported to Japan, the United States market. Our products are suppressed by the injection molding process and the process is made, can produce all kinds of special-shaped products. Meanwhile, we also provide all kinds of cemented carbide products mature. We have the best price and the best service to provide customers with the best quality, and we look forward to working with your sincere cooperation. Reliable products + excellent service + good technical support 2.1 tungsten alloy in various fields of application 1.1 Professional production of environmentally friendly high-density tungsten alloy fishing sinker, tungsten balls, golf with weights, tungsten steel strap and a variety of high-density tungsten alloy and copper tungsten alloy products. My company has abundant capital, advanced production technology and strict quality management and technical support domestic famous universities. Products are exported to Japan, the United States market. Our products are suppressed by the injection molding process and the process is made, can produce all kinds of special-shaped products. Meanwhile, we also provide all kinds of cemented carbide products mature. We have the best price and the best service to provide customers with the best quality, we look forward to cooperate with you sincerely 2.1 tungsten alloy in various fields of application: 2.11 in the medical field: device - a tank for storing radioactive material , boxes and other containers; collimator - for medical linear accelerators and cyclotrons; tungsten alloy container - for 60Co heavy alloy (tungsten alloy) are a class of materials as the substrate of tungsten (W content of 85-99%), and added with Ni, Cu, Co, Mo, Cr and other elements of the alloy. Characteristics and uses according to the alloy composition into W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag other major series, a high density of 16 .5-19.0 g / c,, , and was the world known as the high proportion alloy, it also has a series of excellent features, heavy: Average specific gravity of 16.5-18.75g / c,,,, high strength: tensile strength of 700-1000Mpa, ability to absorb radiation : its ability to lead a high ratio of 30-40%, thermal conductivity coefficient: 5 times to die steel; thermal expansion coefficient: Only 1/2-1/3 of iron or steel, good conductive properties; has good weldability and workability. Given the high proportion alloy has the excellent features, it is widely used in aerospace, aviation, military, oil drilling, electrical instrumentation, medical and other industries. Medical tungsten alloy radiation shielding material: tungsten alloy (heavy alloy) multi-leaf collimator leaf (MLC), thickness of 2.0-3.8,,, plate flatness 0.05,; tungsten alloy collimator; tungsten alloy (heavy alloy ) Protection cans - for medical radiological shielding wall; tungsten alloy shielding needle - used for medical radioactive liquid shield; tungsten alloy radiation shielding storage treatment machine; γ camera tungsten collimator. Application of nuclear technology in tungsten alloy (heavy alloy) Series: Detection container system tungsten alloy collimator; 60Co and other tungsten alloy radiation shielding container; 2.12 Geological Survey tungsten alloy shielding γ-ray collimator; pipeline inspection ray shielding tungsten alloy collimator; 2.13 industrial flaw γ-ray shielding tungsten alloy collimator high density tungsten alloy (heavy alloy) counterweight Series: 2.14 machinery counterweight; Flyweight; increased oil drilling rod; darts rod; Golf counterweight; racing with weights; mobile phones, game consoles oscillator; 2.15 Aerospace: Aerospace gyroscope; clocks pendulum; counterweight ball; shock Arbor. 2.16 tungsten alloy (heavy alloy) fishing sinkers Series:,, type, water drop, tube, semi-drop-shaped, cylindrical with hole, tungsten beads tungsten (heavy alloy) Ball Series: φ1.5,,-φ10 , accuracy ± 0.01,,, for the fish falling counterweight, cluster bombs, medical instruments counterweight, projectile; φ0.1,,-φ10,, accuracy ± 0.1,,, for oil drilling balance, projectile ; electrical materials Series: EDM electrodes and resistance welding electrodes; high specific gravity (heavy alloy) electrical contacts, the air circuit breaker contacts. 2.17 Copper tungsten electrodes: 2.18, Series: penetrator; shrapnel, ball, bar, square tablets, cylinder other tungsten alloy (heavy alloy) 2.19 Carbide upsetting block: indexable inserts, rods, long thin slices, plates, jagged piece, impact drill pieces, balls, woodworking blade, drawing stamping die body corrosion resistant structural parts and non-standard