Free sample to support the new cooperation !!!! Oil quenching & tempering spring steel wire 1.Material:50crsia, 55crsia, 60si2mna, 67crva, 65mn, 70#, 67a, 67b, 72a, 72b 2.The range of dia : 0.2-16.0mm 3.Application : for motor or valve 4.Tensile strength : according to customers request 5.Packing: spool or coil, wrapped by plastic 6.Moq: 1 ton/tons 7.Standard: gb/t18983-2003, astm a229m, astm a232m, astm a401m, jis g3560.
