We are offering high quality tricone bit. features 1.size:3 34" (95.3mm)~26" (660.4mm)2.cover all all iadc code 3.reliable quality and best price 4.tungsten carbide insert tricone bit5.certified by iso, api advantages 1.high-strength, high...
We are offering oil well drilling bit. Diafront manufactures premium quality pdc cutters for oil drilling and coal mining, simply because of better production technique and product design. better sintering pressure and temperature control with...
We are offering dth bit. We are a professional productions base of series of rock drilling tools, mining tools, dth drill tools. Construction tools and excavating coal pick cutter tools, we can also produce other products according to the customers requirements. We sincerely...
1. Introduction to  KQZ S eries F ull y P neumatic D own-the-hole D rill ing Rig The KQZ series fully pneumatic down-the-hole drill ing rig  is a highly efficient rock drilling equipment. It uses compressed air to drive the impactor to generate high-frequency impact force on...