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Jiang I Jinshibao Mining Company New Arrival Product Roll Crusher

Rock drills.Choosing a rock drill.First it is important to understand that a percussion rock drill does not cut through rock.Each blow shatters the rock in front of the bitthe steel and bit then rotates slightly and it shatters new rock while air is blown down the center of the drill steel clearing the bit face and blowing the chips up and out of the hole.

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