... And Sofa, Umbrella Frame, Electronic Products, ect.Spring Usagecompression spring, torsion spring, extension spring, agricultural machines, die springs, strip & wire ... SAE1070,SAE1080Standard: AISI, ASTM, BS, DIN, GB, JISPlace of Origin: Jiangsu, China (Mainland)Type: SpringSpecial Use: Cold ... parts. The high carbon steel wire coil is used to make steel wire rope for different usage, spring steel wire ...