... High quality alloy steel 3 Roller: smaill, large, flanged 4 Pin: solid, hollow, etc. 5 Attachments Conveyor chains and special chains ... or stainless steelRoller:small type,large P type,flanged F type,or other typesPin:solid pin,hollow pin,big-head pin,extended pin,etc.Attachments,A1 ... (Long Pitch Engineering Class Conveyor Chains) a)ISO Standard Solid Pin Conveyor Chains (ISO 1977): M, MT / MC, MCT b) ...