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Adopt high quality cold drawn seamless steel tube. Accord with the requirement J55 or 5CT API N80 pipes. Friction welding after end upsetting
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RDH351 Hydra.Drilling Rig
RDA351 Pneu. Drilling Rig
RDH300 Hydra. Drilling Rig
RD150 Electric Drilling Rig
RD100B(D) Light Drilling Rig