... referring products,such as ringing and chains .Raw material :quality carbon spring steel ,60# ,65#,70#,72A,82B Standard : ISO ,DIN, ASTM ... :High carbon spring steel wire ,(Galvanized , Ungalvanized , coated PVC /PE )steel wire rope Hot dip galvanized steel wire rope Diameter : 0.15 mm -12 mm ( carbon spring steel wire ...