Conveyor chain: .Material:alloy steel,Carbon steel ,stainless steel and so on Sprocket feature:1.Material:alloy steel,Carbon steel ,stainless steel and so on2.Heating treatment: Hardening and tempering,High quenching and so on3.Surface treatment:Galvanizing/zinc plating, Dacrotized,Black Andic treatment,Spray printing, Mirror finish. Burnishing and sand lasting4.Durable, good wear resistance