API 8 1/2 inch HAT127 king

API 8 1/2 inch HAT127 kingdream tricone rock bit,HAT series...

12 1/4 IADC637 tci tricon

12 1/4" IADC637 tci tricone bit...

9 7/8 inch steel tooth tr

9 7/8 inch steel tooth tricone drill bit,series bit adopts ...

12 1/4 inch IADC 517 tci

12 1/4" IADC 517 tci tricone bit...

3 1/2 inch center nozzle s

3 1/2 inch center nozzle steel teeth tricone bit...

9 1/2 inch IADC 537 tci t

9 1/2" IADC 537 tci tricone bit...

165mm IADC 217 water wells

sale steel tooth tricone drill rock bit size 165mm IADC 217 ...

9 1/2 inch IADC 517 tci t

9 1/2" IADC 517 tci tricone bit...

311.2mm IADC 327 water ste

311.2mm IADC 327 water steel milled tooth tricone bit:Model ...

9 7/8 IADC 537 tci tricone

9 7/8" IADC 537 tci tricone bit...

8 1/2 IADC737 tci tricone

8 1/2" IADC737 tci tricone bit...

8 1/2 inch IADC637 tci tri

8 1/2" IADC637 tci tricone bit...