Kelly box for kelly bar of rotary drilling rig Quick Details
The utility model relates to a square head of a drill pipe, in particular to a welding square head used for the drill pipe of a rotary drilling rig, which is a component installed and welded at the lower end of the drill pipe. The component transmits the rotary drilling torque and pressure provided by the power head of the rotary drilling rig and the lifting force provided by the main winch of the rotary drilling rig to the drilling tool, so as to complete the rotary drilling of the rotary drilling rig and the bucket unloading.
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Q1:Are u manufacturer.
