Taper Drilling Tools, Jack Hammer, Air Leg Rock Drilling Machine manufacturer / supplier in China, offering R32 R38 T38 T45 Thread Extension Mining Quarring Tunneling Blasting Drill Drill Rods, Hex22 HDD Hex25 Hexagon 108/159mm Shank 7/11/12 Degree Taper Tapered Conical Integral Rock Drill Rod DTH Drill Pipes, Hexagonal Hammer Drilling Diameter Hex22 Hex25 Hexagon Shank 7/11/12 Degree Taper Conical Integral Rock Drill Rod and so on.
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