"Titanium Materials and Their Applications" was written by the Titanium Association. Titanium and its alloys have many excellent properties, such as low density, high melting point, high specific strength, corrosion resistance, high and low temperature performance, non-magnetic, acoustic and vibration of low damping characteristics, good biocompatibility, and carbon composites Is known as "space metal" and "marine metal", in the aerospace, marine development, chemical industry, metallurgy, electric power, human biological material, Sports leisure industry, automotive and other fields have a wider range of uses.