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Thread Drill Bit Gt60 115mm Drill Bit For Mining

70mm T38 Rock Thread Carbide Drill Bit Mining Button Bit

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Thread Drill Bit Gt60 115mm Drill Bit For Mining

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Threaded button bits - LHS Rock ToolsThreaded button bits-LHS Rock Tools. . used in open-pit mining, underground mining, tunneling, anchoring, furnace tapping,

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China T38 T45 T51 Retrac Thread Button Bits - China Retrac Button .1) Bit body: Normal type and retrac type 2) R thread: R22 R25 R28 R32 R38 3) T thread: T38 T4

T45 Thread Button Rock Drilling Bit For Mining

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