The 0.8mm mosquito-type tungsten filament is a specially designed filament, typically used in devices such as electron guns or displays. 

A tungsten retaining ring is a precision-engineered component typically made from tungsten. 

Silver-tungsten rod is a composite material made from silver and tungsten, combining silver's high electrical conductivity with tungsten's high hardness and wear resistance. 

Gold-plated tungsten wire is a material in which a 0.2-0.4 micron layer of 24K gold is plated onto the surface of tungsten wire, 

A tungsten probe is a precision tool made from high-purity tungsten, widely used in semiconductor testing, electronic component inspection, and microscopic operations.

Tungsten twisted wire for electric light sources is a key material widely used in various bulbs and light sources. It features a high melting point, high strength, excellent electrical conductivity, and corrosion resistance. It is primarily used in incandescent lamps, halogen lamps, fluorescent lamps, and high-intensity gas discharge lamps.

Silver-tungsten rods are a composite material that combines the excellent properties of both silver and tungsten. 

Tungsten wire can be used to manufacture anti-static gloves, effectively preventing static accumulation and protecting sensitive electronic components.

According to GB/T 26033-2010 Ammonium Metatungstate, ammonium metatungstate is divided into two grades based on different production processes: AMT-P and AMT-J. Among them, AMT-P is the product produced by spray method, with WO3 content generally ≥ 90%; AMT-J is a crystallization process product, with WO3 content generally ≥ 81.5%.

Ferro tungsten is an iron alloy primarily composed of tungsten and iron, with a tungsten content generally ranging from 75% to 85%. Ferro tungsten has excellent properties such as high density, high strength, wear resistance, and corrosion resistance. It is a crucial material for refining high-speed tool steel, alloy structural steel, magnetic steel, heat-resistant steel, and is indispensable in the steel industry and mechanical casting industry.