rock drill rod, rock drill rod Suppliers and Manufacturers ...
2021-1-6 · Integral drill rod, also called integral drill steels, are used on hand held rock drills in granite and marble quarries, underground mining, for small blasting hole. Shank H22*108mm, H19*108mm, and standard hex. Bit diameters range 20-56mm, different lengths are available from 400mm to 8000mm.
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