This kind of products used in auto parts, America GM, Guangzhou Honda were in use
Tension spring also known as helical tension spring, generally for pitch, cross section is round, they can be used in many occasions, such as production, assembly, test, repair and other R & D. The spring holds the important status in the global market, is widely used in computer, electronic, automobile, mold, medical, biochemistry, aerospace, railway, nuclear power, wind power, thermal power, engineering machinery, mining machinery, construction machinery, elevators and other fields.
Tension spring material used in low carbon steel, manganese steel wire, stainless steel wire (304201), piano wire, nickel wire, galvanized iron wire, non-magnetic stainless steel etc.