ungalvanized steel wire ,carbon spring steel wire, high tensile strength ,high quality reasonable price.win repulation Steel wire Dia.: 0.1mm ~ 13.0mm Tensile strength: 1270N/mm2 ~ 2160N/mm2(Class A, Class B, Class C)steel wire:Product: Spring steel wire,Dia.: 0.1mm ~ 13.0mmTensile strength: 1270N/mm2 ~ 2160N/mm2(Class A, Class B, Class C)Standard: GB/T, DIN, JIS, BS, ASTM steel wire