... . 2.Material:steel,20Mn2, Alloy. 3.Modle:simplex,duplex,triple Conveyor Chain 1).Quality standard:ISO9001 certificate 2).Materialsteel,20Mn2, Q235, Alloy ... , cardans, repair kits and sprockets. Performance and quality of auto parts in compliance with demands of customers of Europe, American and ... ability to make special items according to customer's design. Conveyor Chain