89mm Core Barrel Core Tube Drilling Rod For Core Drilling API ISO 89mm DZ240 Core Barrel Core Tube Drilling Rod For Core Drilling API ISO 1.Descriptio...
200 Meter Depth Crawler Mounted Type Geological Drilling Rig Machine With High Power Product Description: ST-200 portable diamond hard mental drilling ...
Friction Welding Drilling Rod Drilling Pipe For Well Drilling 1.Description Friction welding drill pipe is connected by using two drill pipe friction ...