1.Double Pitch Conveyor Chain with Extended Pins 2.Model:A2040, A2050, A2060, A2080, C208A,C208AL, ... ,C208BL,C210A,C210AL 1.All parts are heat treatment(quenching and tempering) and controlled in a reasonable tolerance range.2.Tensile strength ... : ISO 9001:2000,SGS 4.Centreless grinding.5.Good lubrication with excellent grease.6.Color:self,dark yellow,dark blue,black7 ...