DVY International is a specialist supplier of all kinds of rock drilling tools for mining, quarry, oilfield and construction industries based in China. The products include: Rock Drilling Tools and Accessories including chisel bits, cross bits, button bits, retrac bits coupling sleeves, tapered drill rods, integral drill rods, shank adaptors, dth hammer & bits, drag bits, hand held or air leg rock drills, etc.; Demolition tools including pneumatic breaker steel rods, pneumatic breakers, hydraulic breakers, hydraulic breaker chisels; Diamond Tools including segments, blades, grinding wheels, coring bits, wire saw and beads; Tri-cone Rock Bits and PDC Bits; Equipment For Oil well; Crushing Machinery
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