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Page Views: 17 Date Added: 10/06/2008 Last Updated: 10/06/2008 Expiry Date: 10/04/2018 Description: 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.MS br-and drill collar are manufactured strictly from API Spec7-1 and SY5411 standard. Additional photos

Company Information (TIANHE PETROLEUM MACHINERY CO.,LTD)

Company Profile: Tianhe Petroleum Machinery Co.,Ltd. is a modinized medium-scale enterprise specialied in production of oil and gas tools.Established in 1973,it has been a standardized co.,ltd.Till now,under the leadership of tianhe petroleum machinery co.,ltd,we have full-fund subsdiary company :Mudanjiang petroleum drilling tools holding co,ltd;xi'an Joint-venture compangy. Website URL: http://www.tianhechina.net Year Established: 1973 Products/Service: Main products:Drill callars,heavy weight drill pipe,hydraulic bucking units,hydr-aulic bucking units,hydraulic jar teste-rs,drilling tools,workover tools, in wh-ich,3-self-resarched products have obta-ined state grade patent awards,bucking unti and jar tester have got state grade certificate for new focus products.

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