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Contact Person Mr. Yin
No.29Panlongshan Rd., Jiangyin, Jiangsu
Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. Drill collar are manufactured strictly from API Spec**1 and SY/T***1 standard. -Drill Collar, Non-Magnetic Drill Collars, Spiral Drill Collar, Spiral Drill Collar With Elevator & Slip Groove; All above product ranges we produce in strict technical control with German managment standard. We have got ISO***1:***0 quality system certificate and API (American Petroleum Institute) spec**1 system ***** specification and parameters of our excellent products are avaliable on your request.
