Tungsten alloy counterweight is a F1 specific tuning option and is now becoming the most popular material for balancing race cars. Tungsten heavy alloy is the best material to be used as counterweight which can be used in motor sport, because it has the good properties: high density with small volume, high temperature resistance, non-toxic and environmentally.

Tungsten alloy submarine counterweight can diminish the extent of stabilizer with its high thickness so it can add to the conveyance of weight and enhance affectability of control system. 

In the tungsten-copper alloy, the high melting point tungsten forms a refractory skeleton, which makes the material resistant to arcing, abrasion and high temperature, while the low melting point copper (Cu) has excellent electrical conductivity, thermal conductivity and good plasticity. Therefore, tungsten-copper alloy is widely used as an electrical contact material for high-voltage and ultra-high-voltage electrical switches.

With the shortage of freshwater resources, the environment-friendly water-saving technology using seawater as circulating cooling water has a wide application demand in high water-consuming industries such as electric power and chemical industry. However, the salt content of seawater is high and its composition is complex, which is more corrosive than that of fresh water. Therefore, the biggest technical difficulty in using seawater as circulating cooling water is to solve the corrosion problem of seawater.

Hollow sphere is a kind of material with special structure from nanometer to micrometer in size. Because of its low density, large specific surface area, good stability and surface permeability, these materials have important applications in chemistry, biology and materials science.

Tungsten disulfide is a gray-black hexagonal lattice-like material similar to graphite. Each layer is composed of two layers of sulfur atoms and one layer of tungsten atoms connected by the number of 2:1. Among them, sulfur and tungsten atoms are connected by strong covalent bonds. Sulfur atoms between layers are connected by van der Waals forces. The special crystal structure also makes tungsten disulfide more excellent than molybdenum disulfide lubricating oil additive of the same kind. Tungsten disulfide performs better in extreme pressure, wear and friction reduction, heat and oxidation resistance, etc.

The composites composed of refractory metals and carbides are high temperature materials with excellent comprehensive properties. They make use of the complementary properties of materials to achieve comprehensive optimization. Tungsten-based refractory carbide composites are one of them. This kind of material has good thermal, chemical and mechanical compatibility, ideal high temperature strength and toughness, thermal shock resistance, ablation resistance and other excellent characteristics.

Proton exchange membrane fuel cell (PEMFC) is considered as one of the most promising clean energy sources because of its high energy efficiency and non-pollution. PEMFC directly converts the chemical energy of fuel and oxidant (O2) into electric energy, which is a new type of power generation device.

At present, there are three or forty kinds of Polyoxometalates with anti-tumor activity, most of which are Heteropolytungstates or tungsten molybdate, and they are water-soluble polymers. Some scientists believe that the doping of scheelite with europium has both fluorescence effect and anti-tumor activity. Europium doped nano-scheelite is a kind of anti-tumor nano-material, which is composed mainly of oligomeric scheelite and Europium tungstate. It is soluble in DMSO (dimethylalumina) and becomes a sol-state anti-tumor drug.

The composition of tungsten waste is complex, difficult to extract and complicated to remove. This kind of APT is manufactured by traditional method with long technological process, narrow adaptability of raw materials, large investment in equipment, unstable products and poor economic benefits. In recent years, the preparation of ammonium paratungstate from tungsten waste has been explored and some results have been achieved.