Golden-Spear Precision Castings Co., Ltd. – an export-oriented manufactory invested by Xiamen San-U Lndustrial Co., Ltd., owns three production lines: precision silica gel casting, sodium silicate casting and sand-cast, with the annual ability to produce 2000 tons of precision steel, alloy steel, copper, aluminum, etc. Our products, characterized by their accurate size and smooth finish, have been exported to United States, Japan, Europe, and widely used in aviation, shipping, train, automobile, petroleum, electromechanical and hardware field, and enjoy very good reputation.