- supply HF series Tricone bit
- 2016-10-30 14:39
- HFSERIES BIT FOR HARD FORATION DRILLINGHF series bit has the advantages of long service life, high reliability, fast ROP
- Skw series tricone bit
- 2016-10-25 07:50
- SKW series bitSKW series bit is non-sealed roller bearing bit .This is suitable for surface hole drilling for every kind