R25 R28 R32 R38 T38 T45 Crossover Coupling Sleeve For Drifting and Long Hole Drilling Couplings sleeve are used to well connect the shank adapter to the drill rods or well contact two extensionrods ...View More
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R25 R28 R32 R38 T38 T45 Crossover Coupling Sleeve For Drifting and Long Hole Drilling