Insert Tooth Carbide Tricone Rock Roller Used API Mining Drill Bits2022-03-15 15:38:39 |
Thread domed reaming button bits ST68 152mm For Fast Penetration Rates2019-11-13 15:08:29 |
8 1/2" IADC637 Tricone Roller Rock Bit , Hole Opener Reamer Dth Bits2022-03-15 15:38:40 |
R32 76mm For Drilling Thread Reaming Button Bits2022-03-15 16:20:23 |