T38 extension rod, Drill pipe 1. directly supply from factory 2. good quality 3. competitive price T38, T45, T51 Rock Drill Extension RodWe are the professional supplier for rock drilling machine at high quality and competitive price. We specialize in drill rods, drill bits, DTH hammer, air hose, air compressor for over 10 years. We can supply CHJ Low-Pressure, Medium-pressure and High-pressure ...