Profile: Yangquan Metals & Minerals Imp & Exp Co., Ltd. distributes bauxite, refractory materials, ferro silicon, metallic silicon, magnesium ingots, coke and foundries. Our product line includes refractories, metal minerals, graphite products and valves. Our valves comprises of open-closed gate valves, check valves and butterfly valves. We use gray iron, ductile iron and malleable iron & carbon steel.