steel hinge 1)competitive price,high quality and best service 2)Certificate:ISO 9001:2000 3)OEM services are welcome steel ... wire cutting machines2)Material:Iron,carbon steel,stainless,brass,copper,alloy steel,aluminum,cold rolled steel with various plated;3)Surface ... Powder,Anodizing,E-coating,Silkscreen,Heat treatment,Black oxid;4)Standard/specification:OEM service as per customers' requests, ...