DTH Drill Pipe Water Well Drill Rod 3" -5.5"

DTH Drill Pipe Water Well Drill Rod 3" -5.5". Diverse Size Options: Available in diameters from 76mm to 140mm and lengths up to 6 meters. High-Strength Material: Constructed from STM-R780 steel grade with 6.5mm or 9.5mm wall thickness. Advanced Heat Treatment: Joints undergo quenching, tempering, and surface nitriding for wear resistance. Friction Welding Technology: Uses friction welding and tempering processes for durable pipe ends. ISO9001 Certified: Manufacturing process certified by ISO9001 and CQC for quality assurance. Multi-Application Design: Suitable for rock crushing, anchoring, geothermal, and water well drilling. Custom Production Capability: Can produce various specifications according to customer requirements.