... and good service. -OEM service Qingdao Jowon Mechanical and Electrical Co., Ltd. offers production and operation of casting products, auto parts, textile ... .· Lost wax casting· Investment castingMaterials· Aluminium casting: 319, 355, A356,· Magnesium casting: A291D, AM60B· Zinc casting: ZA-12, ZA-27· Grey ...