Located in “the city of wear resistance casting in China”----Ningguo City, Kaiyuan Electrical Power Wear Resistant Materials Co. Ltd, a holding company of Ruitai Technology, is the second largest casting grinding steel ball manufacture in China. The company covers an area of 200,000 square meters and owns USD 3,000,000,000 of fixed-assets with over 600 staff and 100,000 MT of annual production capability. “GUOYANG” brands are widely applied in metallurgy, cement, water coal slurry, construction .....