Min. Order Reference FOB Price
10 Pieces US$100.00-500.00 / Piece
Product Description
Rock Drilling Tool R25 R28 R32 R38 T38 T45 T51 St58 St68 Gt60 Drifter rod Speed rod Extension rods are made by hollow drill steels. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. And the threads can be used for connecting couplings, ...