Steel Geological drill pipe / drill Rig
1 high quality at competitive price
2 Best sellings, hot sellings drill pipe

Detailed Product Description
drilling rod
1.Whole heat treatment
2.Screw thread heat treatment.
3.Hard chromed on pin end

Friction Welded drilling rods 73mm to 140mm API standard R780 / 42CrMo4 alloy steel, heat treated.

The wire-line drill pipe is used for core drilling rig, and it can work more effectively.

 It is have into high-efficiency, to take core rate, life expectancy bit long, labor-intensive small advantages and so on. The more deepening of the depth it drilling, the more obvious advantages it showing.