Aluminum is a highly ductile metal, making it easy to machine. The material has a good strength-to-weight ratio and is available in many types for a range of applications.

Brass has desirable properties for a number of applications. It is low friction, has excellent electrical conductivity, and has a golden (brass) appearance. It is commonly used in parts that need a large load.

Copper displays excellent thermal conductivity, electrical conductivity and plasticity. It is also highly ductile, corrosion resistant and can be easily welded.

Stainless steel features a high-temperature resistant, with good oxidation resistance and corrosion resistance. It is widely used in machine parts, contruction industry parts, etc.

Titanium alloy is widely used in automobile industry because of its light weight, high strength and good corrosion resistance.

Special steel is a kind of steel with special composition, special production process, special structure and performance, which can meet special needs. Compared with ordinary steel, special steel has better strength and toughness, physical properties, chemical properties, biocompatibility and technological properties. It is widely used in machinery, automobile, military industry, chemical industry, home appliances, ships, transportation, railway and other fields.