Jaw crushers, cone crushers, impact mills, ball mills, and roller presses used to reduce rock, ore, and other solid mineral substances to smaller particle sizes are the defining equipment of SITC 72832, serving mining, cement, aggregate, and industrial minerals sectors. The heading covers both primary crushing of run-of-mine material and fine grinding to powder, with the distinction between coarse and fine reduction often reflected in the machine type rather than the classification. Equipment capacity, feed size, and product fineness are the key commercial parameters buyers and sellers specify in trade contracts.

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