- 311 tricone bit
- 2017-01-15 11:19
- Tungsten carbide insert bit, TCI bit, button bitSizes range from 3 7/8 to 26 .Reliable bearing and lubrication system
- rock roller bit
- 2017-01-15 11:19
- GJ series bit adopts metal seal with roller bearing, which can drill stably with middle to low WOB and middle to high RP
- tricone bit
- 2017-01-15 11:19
- TCI tricone rock bits:1)certified by ISO9001API2))used for water well, oil field3)IADC:114-117,127,437,517,617,637
- API tricone drill rock bit
- 2017-01-15 11:18
- 1)certified by ISO9001API 2)high quality and competitive price 3)various of tricone bit avaliable
