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Grinding Balls Sorting Tab

73.heat treatment study. 3.1 pre-test treatment. the as-cast grinding balls with the diameter of 110 mm were selected randomly from the grinding balls produced by the sand-coating process in the iron mould and 16 standard impact samples with the dimension of 55mm l0 mm l0 mm were cut by linear cutting machine.no shrinkage or porosity was found in the sample taken from.

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