Sign In | Join Free | My qualitytoyschina.com |
|
Hard Formation Steel Tooth Tricone Bit 8 3/4 Inch With High Compressive Strength Basical Parameter Bit Size 8 1/2"(216MM) IADC Code 537 Connection 4 1/2"API reg pin Nozzle Qty 3NZ Make up Torque(KN.m) ...