17 1/2'' 444.5mm tricone bit used Fast drilling rate2016-01-07 18:48:21 |
API well drill machine rotary tci tricone drill bit2015-11-18 23:06:54 |
Hot: 120'' tungsten carbide TCI tricone drill bits2015-11-18 22:55:52 |
New Arrival PDC Diamond Drilling Bits/pdc drill bit2015-11-18 23:07:32 |
API 9 1/2" IADC 517 TCI tricone button bit/drilling rock bit2015-11-18 23:02:13 |
TCI drill bit for well drilling bit for mining2015-11-18 23:03:40 |