drill rod coupling sleeve, drill rod coupling sleeve ...
Drilling Coupling Rock Drilling Tools R38 T38 T45 T51 Half Bridge Threaded Pipe Coupling Sleeve Drill Shank Rod Adapter. US 17.00-60.00 Piece. 20.0 Pieces (Min. Order) 6 YRS Liaocheng Sanli Construction Machinery Co., Ltd. 100.0%. Contact Supplier.
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