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76mm X 3000mm Thickened DTH Drill Rods For Deep Well Drilling / Mining2019-03-06 12:58:02 |
Hexagonal DTH Drill Rods , Diameter 22mm Mining Drill Rod For Taper Bits2019-03-06 12:58:02 |
Integrated Open Hole DTH Drilling Rig 90 - 115mm Hole Range Compact Size2019-03-07 16:20:01 |