41f threads rc dual wall pipe online manufacture

Customized Double Wall Drill Pipe For Reverse Cycle Drilling Product Description Double wall drill pipe is suitable for reverse circulation technology, and its scope of application is 1. It is suitable for ... Read More

Customized Double Wall RC Drilling Rod Trenchless Double Wall Drill Pipe Product Description Trenchless double wall drill pipe is composed of inner drill pipe and outer drill pipe (called inner pipe and outer ... 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

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

Reverse Circulation Drill Pipe / RC Double Wall Drill Pipe Product Description In order to realize the reverse circulation drilling process of the through-hole DTH hammer, the supporting drilling tool system ... Read More

Rotary Drill Double Wall Or Single Wall Casing Pipe With Casting Joint Product Description In order to realize the reverse circulation drilling process of the through-hole DTH hammer, the supporting drilling ... Read More

Double wall drill pipe, trenchless consists of inner drill pipe and outer drill pipe Product Description: The gas lift reverse circulation drilling technology has the advantages of large backflow, fast backflow... Read More