60 (12A-1R)simplex transimission chain 1.Factory price 2.Good quality with best delivery 3 ... color : nature,black,blue,yellow5)factory price without middle man6)standard:ISO/ DIN /ANSI7)good quality with best delivery time8)manufacture ... :428,428H,530,530H,630,630H3)short pitch conveyor roller chain attachments:A-1,A-2.K-1,K-2,SA ... requirements. : durable 60 (12A-1R) A series simplex transimission chain