Tungsten alloy bullet is one of the most important bullet for applications of underwater submachine gun. And such bullets are also called tungsten alloy underwater submachine gun bullets - a type of arrow-shaped projectile made of tungsten heavy alloy. And it is the special tungsten alloy long rod warhead that make the submachine gun have a longer effective range. Also, it guarantees the stability of the bullet when flying underwater, while ensuring the hit rate and reliable lethality.

Tungsten disulfide grease is a new type of grease made of a new lubricating material - tungsten disulfide (WS2) and other materials. It is WS2 that make this grease have high temperature resistance, excellent oxidation stability, good abrasion resistance at extreme pressure, good resistance to water washout, and long service life. Also, such a WS2 grease provides excellent anti-rust and anti-corrosion protection to prevent the corrosion of metals by water, steam and acids.

Tungsten disulfide nanosheets are an important functional material. It is reported that WS2 nanosheets are a graphene-like two-dimensional layered nanomaterial with unique physical and chemical properties, so that it is widely used in lubricants, lithium-ion batteries, supercapacitors, semiconductor electronic devices, hydrogen storage and other fields.

As its name suggests, tungsten disulfide high temperature extreme pressure grease is fabricated using tungsten disulfide (WS2) particles as a lubricating material and can be applied at high temperatures and extreme pressures. Such a lubricating grease has characteristics of good stability, adhesion, wear resistance, oxidation resistance, and high temperature lubrication performance at extreme pressures. Also, it has a long service life in the range of ultra-high and ultra-low temperature. Lubrication temperature range is from -20 °C to 250 °C, up to 300 °C in short-term. The applicable temperature ranges of anti-seize is -60 °C to 800 °C.