Guoying Henan Mining Machinery Factory is a heavy machinery manufacturer subordinated to China Mechanical Industry Mechanization Construction Controlling Company. The leading products include whole set mine-selecting equipment and sandstone equipment such as ball mill, crusher, magnetic separator, flotation machine, classifier, drier, sand-maker, oscillating screen, sand washer, conveyor, etc. Mine-selecting equipment is applicable to select non-ferrous metal ore such as iron, copper, gold, silver, lead, tungsten, molybdenum, manganese and non-metal ores such as fluorite and quartz. Sandstone equipment is applicable to construct airport, railway, freeway, average highway, national large bridge, sub-bottom tunnel, land tunnel and new-type high building. It has fixed assets amounting to RMBRMB103,260,000, 800 staffs and 120 technicians. After more than tewenty years' development, the factory has built itself into a comprehensive enterprise that comprises scientific research, test, manufa