- Drilling Bits
- 2016-11-01 17:01
- Drilling Bits Model: NQ1.High penetration rate 2.High core recovery ratio 3.Long bit life on working....................
- Diamond Core drill Bit
- 2016-10-29 07:41
- Diamond Core drill BitIntroduction:Impregnated Diamond Core Bits are manufactured with very small, high quality syntheti