Desc:Product Description HF-150 Reverse Circulation Rig The impact frequency of reverse circulation rig is 40 times /min, the main and the auxiliary hois...
Desc:4Inch DTH Hammer Drill Bit DHD340 130mm High Air Pressure Down The Hole DTH Button BitThe use of a wide range:the bit is suitable for carbonate rock, ...
Desc:Product DescriptionBQ NQ HQ PQ Diamond Impregnated Core Drill BitDepending on the range of application as well as the cutting media on the core bits, ...
Desc:Product DescriptionBQ NQ HQ PQ Diamond Impregnated Core Drill BitDepending on the range of application as well as the cutting media on the core bits, ...
