... specialized in supplying high strength chain, alloy steel hoist chain, transport chain, proof coil link chain and chain sling to satisfy your ... Africa, United State etc 1) Grade: G80, G70, G60, G43, G30 alloy steel chains2) Surface treatment: Self color, black ... painted etc.3) Material: 20Mn2, 25Mnv, Q235 (alloy steel chains, mild steel chains, welded lashing chains, transport chains, lifting ...