51 2fh threads double drill pipe online manufacture

ISO9001 6m Length DTH Hammer Directional Drilling Pipe Reverse Circulation Double Wall Drill Pipes For RC Reverse Circulation DTH Hammer Product Description The non-grooved double-wall drill rod is composed of ... Read More

Reverse Circulation Od 114mm Drill Pipe Used for well drilling R780 grade steel Product Description: The double-wall drill pipe is used for RC drilling, the circulating medium passes through the gap between the ... Read More

Double Wall Drilling Pipe RC Rods For Reverse Cireulation Drilling Product Description High strength double tube drilling pipe for air reverse circulation drilling in open pit mining. Length can be made as per ... Read More

Product Description In order to realize the reverse circulation drilling process of the through-the-hole DTH hammer, the matching drilling tool system mainly includes a double-wall drill rod. In addition to the ... Read More

Double Wall Drill Pipes For RC Reverse Circulation DTH Hammer Product Description The non-grooved double-wall drill rod is composed of an inner drill rod and an outer drill rod (called inner drill rod and outer ... Read More

114mm 4 1/2" remet double-wall pole reverse circulation Product Description: The high-pressure air and the gas pipe are transported to somewhere in the well. The high-pressure air and liquid are injected into ... Read More

High Steel Water Well Drill Pipe Od 114mm 4 1/2" Remet Length 6000mm Black 114mm 4 1/2" remet double-wall pole reverse circulation Product Description: The high-pressure air and the gas pipe are transported to ... Read More

High Strength Drill Pipe Used For Reverse Air Circulation Drilling Product Description High-strength double-tube drill pipe used for reverse air circulation drilling in open-pit mining. The length can be set ... Read More

API Stainless steel reverse circulation drill pipe 114.3 * 6000 high strength corrosion resistance Product Description 1. Name: Double wall drill pipe 2. Size: DP89/40-DP219/150 3. Standard: ISO API 4. ... Read More

High Pressure Fuel Pipes Double Wall Steel Drilling Pipe Product Description In order to realize the reverse circulation drilling process of the through-the-hole DTH hammer, the matching drilling tool system ... Read More