High Quality DTH Drill Rod for DTH Drilling Rig DTH drill pipe plays an important role in DHT drilling. The key features of high quality drill tube .....
Down The Hole Mining Drill Pipe Drill Rod Friction Welding Product description Down th hole drill pipes play a significant role in all DTH drilling, ....
2 3/8", 2 7/8",3 1/2",4 1/2" API Reg DTH drill rod / pipe with Friction Welding DTH drill pipe is mainly used in the drilling blasting hole, guardrail ...