Changsha Chaojingang machinery manufacturing CO., Ltd
Super Diamond, The more use, the more efficient!
5 1/8 Inch 130mm DHD340 drill Bits with Guage 8*16mm Center 8*14mm for hard rock
CD25-76 2 inch Hard Rock Drill Bits DTH Drill Bits For Water Well Blasting
105mm 4 inch down the hole rock drill bits used for dth hammer
Tungsten Carbide Spherical Button Bit DTH For Mining Or Drilling Tools CD65-152
SD10-254 DTH Drill Bits Maximizes Efficiency Long Lasting Service Life
CD55-130 Down The Hole Hammer Bits , Dth Drilling Tools Long Lifespan
Low Breakage Alloy Steel DTH Drill Bits 280mm 11 Inch For Rock Breaking
Energy Saving DTH Drill Bits High Air Pressure Diameter 530 - 660 Mm
530mm Down The Hole Hammer Bits High Drilling Efficiency Long Life Span
CD65-185 High Air Pressure DTH Drill Bits Button Type 6 Inch - 8 Inch