... 19.050mm 3)plate thickness : 2.42mm ANSI 60 A series simplex roller chains(12A-1R)1)material ... 530,630,25,25H3)short pitch conveyor roller chain attachments:A-1,A-2.K-1, ... ,2060,2062,2060H,2062H,2080,2082,2080H5)agricutual chain:ZGS38 series, 212A(2060) with attachment series, ... 6)simplex,double,triplex chainsThe chain technic is as bellow1)shot peening2)bluing3)phosphating4)nickel ...