Dongying Haihe Machinery Co., Ltd located in Dongying Shandong China is a professional manufacturer of investment castings, lost wax castings & precision castings. And both sodium silicate and silica sol processed have been adopted. We mainly produce stainless steel castings, carbon steel casting and alloy casting.Our products include kinds of flanges, valves, marine hardware, construction hardware, house hardware, automobile part, motorcycle part, hinge, devices for hydraulic press and for oil extraction, cross fitting, golf head and so on.What should you do :Just supply drawing or sample What should we do :produce accordance with the requirements of customers strictly ,guarantee quality delivery on timeWe are keen to have the opportunity to cooperation with friends all over the wold