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beijing,China
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Alloy Steel 102mm T45 Thread Rock Drill Bit With Carbide Buttons Inserts
T38 76mm Wear Resistance For Rock Drilling Top Hammer Drill Bits
T45 Bench And Long-Hole Drilling Threaded Rock Drilling Button Bit
Type 7 Degree Cross Bit Mining Operations Tapered Drilling Tools
7 Degree 42mm Tapered Button Bit For Rock Drilling
Mining Drilling Tunneling Tapered Button Bit Short Skirt 7 Degree 32-50mm
Type Body Drop Center T45-89mm T60-102mm Button Bit For Mining
T38 76mm Spherical Button Drill Bit Tungsten Carbide
T51 115mm Ballistic Spherical Thread Button Bits Rock Drilling
11 Degree 38mm Tapered Button Bit For Rock Drilling
7 Degree 42mm Tapered Button Bit For Rock Drilling
R32 52mm Drop Center Stone Retrac Rock Drill Bit