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73mm Outer Dianeter Of Joint Or Customized Double Wall Drill Pipe Product Description 1. Name: Double wall drill pipe 2. Size: DP89/40-DP219/150 3. Standard: ISO API 4. Certification: ISO API In order to ... 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

Product Description: Double Wall Drill Pipe Double wall drill pipe is a kind of reverse circulation drill pipe, which is a piping system designed to ensure the safety and reliability of drilling operations. It ... Read More

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

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

73mm Outer Dianeter Of Joint Steel Reverse Circulation Double Wall Drill Pipes Product Description 1. Name: Double wall drill pipe 2. Size: DP89/40-DP219/150 3. Standard: ISO API 4. Certification: ISO API In ... 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