... steel link chain 1.DIN766/DIN763, Australia standard, ASTM standard(G30, G43, G70, G80) ect 2.SS316/SS304 or carbon Stainless steel link ... steel3) Standard: DIN763(DIN5685C), DIN766(DIN5685A), Australian type, ASTM standard(G30, G43, G70, G80) , Norwegian type, Korean type, US type, double loop chain ...