Symmetric Overburden Casing Drilling System Any Direction Drill With Ring Bit Odex Dth Hammer Bit
We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, top hammer button bits, coupling, cross bits, drill rods located in Xiamen,Fujian,China.
Product specifications: Concentric/Symmetric Casing overburden Drilling System with Ring Bit