Dongying Haihe Machinery Co. Ltd., established in 1988, is located in Dongying Shandong province-manufacture base of investment casting in China. We are close to the famous sea port-Qingdao Port, only three hours way. We are specialized in OEM orders with customer&＃039;s design. We apply both silica sol (lost wax) process and water glass process. Also we imported spectrometer machine from Germany and three three-dimensional machine from Sweden to ensure good quality. We mainly deal with investment casting of carbon steel, alloy steel and stainless steel with high quality and competitive price. Also we can supply kinds of petroleum equipments. We also supply customers machining and excellent processing service. There are about 230 employees in our company now. We own 3000 square meters plant area. The yearly output of various castings is above 3000 tons .With high quality and good reputation, we have established good relationship s with many customers from USA, Canada, Holland, Sweden, Italy and New Zealand. And our company has got ISO 9001 quality system certification since 2000. Our goal is to give customers reliable quality and cordial service. Welcome to our factory to negotiate business!