Titanium is a modern metal and an important strategic metal. The application of titanium in national economy reflects a country's comprehensive national strength, economic strength and national defense strength. It is an indispensable key material for high and new technology. At present, major economies in the world are competing to develop titanium industry.

hromium is a brittle metal that can not be used as a metal material alone, but when it is combined with iron, nickel, cobalt, titanium, aluminum, copper and other alloys, it becomes an engineering material with heat resistance, heat strength, wear resistance and special properties. Chromium metal as raw material...

Spongy zirconium is a silvery-gray, lustrous, reactive metal with a melting point of 1852 ± 2.001°C, a boiling point of 4377°C, and a density of 6.49 g/cm³. It appears as a porous, sponge-like material.