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Ball Grinding Forged Jun

Difference between high chrome grinding media and forged ones 1, the hardness of core and surface for a forged ball is quite different, like the core hardness of 4ich forged ball is only 48hrc, while for cast grinding media, only 2 degrees different between surface and core.2, the microstructure for these two kind of grinding medias is quite different, the main working method of cast ball is.