... sand casting,Material:aluminum A356.Finished:T6 heat treatment,powder coated.OEM is accepted. Material: aluminum alloy With heat treatment ... threading Surface finish process: polishing shot blasting, chromate plating, power coated and anodizing Casting capacity: 200 to 500 tons/month OEM ... drawings, specifications and samples automobile part,aluminum sand casting,powder coated finished.(ISO9001:2000)