we are an innovative job shop specializing in the casting and machining of high-quality gray, ductile iron parts. Our product cover more than 200 types. During 10 years production we have form our advantage in gray iron and ductile iron. Full lab testing. Ounces to 2,000 lbs. Heat treating, machining & finishing available. For more information, you can send email to shijiazhuang10@yahoo.com.cn