... ~16.0mm Standards: ASTM, BS, DIN, GB, JIS 55CrSi Alloy steel oil tempered spring steel wire Grade: 55CrSi,60Si2Mn,65Mn Dia:1 ... . Applicable Industriesl: Widely used in automobile, elevator, motorcycle, electric switches, high-speed rail, machinery. Meanwhile, we also can according to the ... >6.50~7.001430~15801400~15501500~16501630~17801740~18903540 55CrSi Alloy steel oil tempered spring steel wire