... 61dmANSI 60 durable triplex roller chain(12-3R) ANSI 60 durable triplex roller chain(12-3R) ANSI 60 durable triplex roller chain(12-3R) Pccking ... chains :428,428H,530,530H,630,630H3)short pitch conveyor roller chain attachments:A-1,A-2.K-1,K-2,SA ... v& conveyor chains :2040,2050,2060,20805)leaf chains:LH series,AL series6)stainless steel roller chains7)simplex,double,triplex chains The chain technic is ...