... 1996, GB 1102-74, SC 1443-86, ISO, BS, DIN, JIS, API and RRW-410D Item Information Steel materials quality carbon ... steel ,60# ,65#,70#,72A,82B StandardISO ,DIN, ASTM,JIS , etc Tensile strength1770mpa,1570mpa,1670mpa,1860mpa,1960mpa Highcarbon spring steel wire (Galvanized ... ,1x19,1x37,6x7,7x7,6x37,7x37,6x19 (1.0mm-36mm)Tensile Strength:1570,1670,1770,1870MPAPacking:Usually packing in 1000m,2000m/wooden ...