... with core. The raw material is quality carbon spring steel. Detailed Product Description1,Name:Spring steelrope, Spring Wire Rope ... Mini tensile strength:1770mpa,1570mpa,1670mpa,1860mpa,1960mpa6,High carbon spring steel wire (Galvanized,Ungalvanized,coatedPVC/PE/teflon/rubber/SLPE ... )steel wire rope ,hot dip galvanized steel wire rope7,Diameter:0.15-12mm( ...