... Quality Control System. 1. Production process: sand casting, investment casting (water glass and silica gelcasting process), stamping ... Service and Product:1). Casting: Sand Casting,Molding Casting, InvestmentCasting,Die Casting,Lost Wax Casting,Lost foam casting, V-process casting2). ... service and products efficiently .Xian Guangxing Mechano-Electronic Co., Ltd., founded in 2008, is located in Shaanxi ...