Qingdao ZHENGJIAXIN Precision Metal Co.,Ltd. is manufacturer of casting for auto parts ,marine hardware ,food machinery parts ,building hardware ,pipe fitting ,pump and valves .Our product line includes precision casting ,investment casting ,lost wax casting ,die casting ,forging and CNC machining. Material: stainless steel, carbon steel,alloy steel,cooper,brass and so on . Surface Treatment :Heat Treatment, Polishing, Plating, Machining, Anodizing, shot, sand blasting, zinc plated, oxide, galvanized etc.  We are professional production factory of casting ,have more than 10 years of export experience ,our product popular at germany ,UK ,USA,canada ,korea and others country . In order to ensure the quality of the orders, our independent QC members to carry out strict inspection at each stage: (1)Incoming material inspection(2)Inspection of work-in-progress(3)Finished product inspection (4)Random warehouse inspections All of our operations are strictly compliant with ISO 9001: 2008 gu