... appearance more aesthetic, high-gloss, no deformation. Grinding ball mould has higher accuracy, completely interchangeable, bears ... the higher utilization of hot metal. Name: Grinding ball mould With special alloy materials, advanced production ... They can be used for more than 4, 000 times, and make grinding ball crystal more thinner, ... 90, Φ100, Φ110, Φ120 Three ball: Φ130, Φ140 Grinding balls Mould