Company established Water glass process line, sand casting process line and investment casting manufacturing line itself in 2001 and mainly supplied to automotive engine manufacturers as well as in military industry in domestic. Company established sand casting manufacturing automatic line with producing capacity of 5000T annually since 2004.Products are mainly supplied for automotive engine manufacturers, also company can manufacture casting(Gray iron, ductile iron, carbon steel and alloy steel) according to customers' requirements and drawings. And the quality control system is very advanced: Inspection equipments including spectrograph, heat analysis, metallometer, combined labor testing, X ray defectoscope, etc.