: Liaocheng Jinquan Construction Machinery Co.,Ltd - China manufacturer of rock drilling tools button bits top hammer rock tools DTH hammer button bits

Sell the whole drilling idea not just the rock drilling tools button bits & DTH drilling equipments! [sales@jinquandrill.com]

R Thread Drill Rod R22 R25 R28 R32 R38

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Liaocheng Jinquan Construction Machinery Co.,Ltd - China manufacturer of rock drilling tools button bits top hammer rock tools DTH hammer button bits

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R Thread Drill Rod R22 R25 R28 R32 R38

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R Thread Drill Rod R22 R25 R28 R32 R38

R22 R25 R28 R32 R38 extension rod drill rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, ...

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