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. 

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.

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.

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.