1.drill collar slip 2.type:DCS-S DCS-R DCS-L 3.API Spec 7K ISO9001:2008 4.GB/T 28001-2001 5.GB/T 24001-2004-ISO14001:2004 Drill collar slip is manufactured in a structure of muli-segment pieces with firm structure, light weight, and large holding range, which is easy to fit the changing of the external diameter of the drill collar due to wear and tear. TypeDCS-SDCS-RODin3-44-4.7/84.1/2-65.1/2- ...
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