Impeller,aluminum sand casting, with Precision Molds and Tooling, OEM is accepted. Material: aluminum alloy Die, sand and mold casting process Can offer ... finish: polishing shot blasting, chromate plating, power coated and anodizing OEM and ODM parts range: auto parts, electronic parts, furniture parts ... to 500 tons/month Impeller,aluminum sand casting,with precision molds and tooling(ISO9001:2000)