... : ISO GB ASTM JIS EN OEM service available Name: pump casing ISO 9001:2000 Approved Process: precision casting Standard: ISO ... Approved 2.Material: stainless steel, carbon steel, alloy steel, cast iron, iron and so on. 3.Process: lost wax process, soluble ... silicon process casting. 4.Application: auto parts, vavle parts, pump parts, hardware, industrial parts. 5.Surface treatment: polishing, machining, ...