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china block making machinery germany design full

china block making machinery germany design full

forged grinding ball has high hardness surface hardness to 58-65hrc, volume hardness of 57-64hrc 2. impact toughness high impact toughness more than 12j-35j cm2

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Our products sell well all over the world, and have advanced technology in the field of crushing sand grinding powder.

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Zhengzhou high tech Industrial Development Zone

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