Bobby Special Steel Pipe (China) Co., Ltd.

We&＃039;re a Sino-German joint venture, completely equipped for manufacturing and exporting of: -Drill Collar, Non-Magnetic Drill Collars, Spiral Drill Collar, Spiral Drill Collar With Elevator & Slip Groove; -Integral Heavy Weight Drill Pipe, Integral Spiral Heavy Weight Drill Pipe, Kellys; -WZ Type Integral straight blade stabilizer, Integral spiral blade stabilizer, Replaceable sleeve spiral stabilizer; -Tool Joint, Cross-over sub, Drill tool lifting sub; etc. All above product ranges we produce in strict technical control with German managment standard. We have got ISO9001:2000 quality system certificate and API (American Petroleum Institute) spec7-1 system ***** specification and parameters of our excellent products are avaliable on your request.