PDC Bits For Well Drilling2015-11-18 23:10:27 |
cost-effective TCI bit/tricone rock bit/TCI tricone drill bit2015-11-18 23:03:40 |
The advantage of using a tricone bit2015-11-18 09:09:29 |
8 1/2'' Kingdream tricone bits with tungsten carbide2015-11-18 09:08:31 |