Wireline Drill Rods Geological Drill Pipe High Straightnes High Tensile Steel Core Drilling 1. Core drill rods are used in coring drilling project, .....
Wireline Drill Rods High Precision Good Low Temperature Toughness High Torque Resistance 1. Drill pipes are widely used in mining,geological exploring ...
Threaded Drill Rod Stainless Steel Thin Wall Heat Treated Tube Body This kind of drill rod is especially suitable for the geological, hydrological, .....