Welding hardfacing on drill pipe，tool joint，drill collar etcApplications in oil and gas industry，!!spec!!fea...
Hardbanding welding machine, cnc pipe threading lathe...
1、Welding joint spec2 3/8″— 5 1/2″ joint（It is available for 18° or 35° inclined、excircle, continues building-up welding）2、Technical specIn according with the national standards for the building-up welding of drill pipe and hardbanding, this product...
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