Grinding Ball, Steel Ball, Grinding Media Ball manufacturer / supplier in China, offering (59-66HRC) Good Surface Quality Impact Resistance Grinding Steel Ball/Grinding Ball for Mining, High Quality G40 Grit/Steel Sand/Steel Grit for Shot Peening, Water & Liquids Filtration Blasting Abrasive 80 Mesh Pomegranate Sand/Garnet Sand and so on.