forged grinding ball 20mm150mm forged ball
forged grinding ball 20mm150mm forged ball Products Made In China, China Manufacturer. A:Product Name: forged ball, grinding ball, forged grinding ball, grinding foeged ball, forged stell ball, steel ball B:Diamete: 20mm150mm C:Hardness:HRC55~65 D:Characteristics: a) High hardness and resistance b) Good even wear c) No breaking E:Uniformity of hardness from surface to core F