51 2fh threads double drill pipe online manufacture

102mm High Steel Double Wall Drill Pipe Reverse Circulation 6000mm Longth Manufacture of RC drill pipe/114mm reverse circulation drill pipe/double wall drill pipe Product Description: 114mm R780 gread Steel ... Read More

Circulation Water Well Drill Pipe Double Wall Rods Reverse Cireulation Drilling For Geological Product Description In order to realize the reverse circulation drilling process of the through-hole DTH hammer, ... Read More

Manufacture of RC drill pipe/114mm reverse circulation drill pipe/double wall drill pipe Product Description: This series of reverse circulation pipes can increase the permeability of the lost stratum, reduce ... Read More

High quality double wall reverse circulation RC drill pipe drilling Product Description Gas-lift reverse circulation drilling technology is due to large backflow, fast backflow, high drilling efficiency, high ... Read More

Factory direct sales double wall RC drill pipe for reverse circulation drilling Product Description: Drill pipe basically consists of a steel tube with a pin at one end and a box at the other. The job of the ... Read More

Provide water well pipe for RC drilling Double wall rod reverse circulation reverse circulation (RC) drill pipe Product Description: Od 76mm Double Walled Drill Pipe is used for RC wells R780 steel grade. ... Read More

Double wall drill pipe for reverse circulation Product Description: The double-wall drill pipe is a full-hole drilling tool, and the hole wall gap is small, so there is no space condition for the broken rock to ... Read More

Premium 4 1/2 Double Wall Reverse Circulation RC Drill Rod for Drilling Product Description: The double-wall drill pipe is a full-hole drilling tool with good rigidity, so the hole deviation rarely occurs; the ... Read More

Manufacture of RC drill pipe / 114mm reverse circulation drill pipe / double wall drill pipe Product Description: Double wall RC drill pipe is used for core sampling drilling and gas lift reverse circulation ... Read More

Premium double wall drill pipe/reverse circulation drill pipe Product Description: The double-wall drill pipe is used for RC drilling, the circulating medium passes through the gap between the double-wall pipes ... Read More