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<title><![CDATA[EC21 Product Catalogs - 4 string]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/4_string--2644/1/4 string.html]]></link><item>
<title><![CDATA[Maxdrill Crossover R28-R32 Coupling]]></title><link><![CDATA[https://juliewang6.en.ec21.com/Maxdrill_Crossover_R28_R32_Coupling--12038091_12038100.html]]></link><description><![CDATA[string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability.
(1)Size: R25,R28, R32, R38, T38, T45, T51
(2)Len]]></description><pubDate><![CDATA[20250120]]></pubDate></item>
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<title><![CDATA[Hard Rock Drilling T51 610mm To 6400mm Thread Extension Drill Rod]]></title><link><![CDATA[https://ksqdrilling.en.ec21.com/Hard_Rock_Drilling_T51_610mm--11913418_11913427.html]]></link><description><![CDATA[Hard rock drilling T51 610mm to 6400mm Thread Extension Drill Rod
Product Description
Our rod using thread system. Drilling precision can be further improved by using this as the first rod in a norma]]></description><pubDate><![CDATA[20240319]]></pubDate></item>
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<title><![CDATA[API Oilfield Well Drilling Casing Guiding Float Collar and Float Shoe for Cementing]]></title><link><![CDATA[https://zhongshigroup.en.ec21.com/API_Oilfield_Well_Drilling_Casing--11790563_11790572.html]]></link><description><![CDATA[string presents special cementing consideration due to high displacement volume of large diameter casing. Features: Small diameter inner string off drill pipe is used to displace cement which minimiz]]></description><pubDate><![CDATA[20230516]]></pubDate></item>
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<title><![CDATA[API Standard AISI 4145H Mod Drilling Stabilizer for Oilwell]]></title><link><![CDATA[https://senwell2008.en.ec21.com/API_Standard_AISI_4145H_Mod--9714769_9715051.html]]></link><description><![CDATA[string or near bits)
2 Material (steel or Non Mag.)
3 OD and ID
4 Connections type and size
5 Fishing Neck OD and length
6 API stress relief groove
7 Open or tight design
8 Right or left hand spiral
]]></description><pubDate><![CDATA[20170304]]></pubDate></item>
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<title><![CDATA[Wireline Drill Rods, Diamond Drill Rods, Wireline Core Drilling Rods, Rods BQ NQ HQ PQ]]></title><link><![CDATA[https://gzvilong.en.ec21.com/Wireline_Drill_Rods_Diamond_Drill--10772805_10772821.html]]></link><description><![CDATA[on the top end of the core barrel, lowered inside the rod string.
4. To remove the core sample from the core barrel, break it into small pieces to make it fit into the sample trays and catalogue.
]]></description><pubDate><![CDATA[20210520]]></pubDate></item>
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<title><![CDATA[MAXDRILL  Top Hammer Coupling Sleeves]]></title><link><![CDATA[https://maxdrill02.en.ec21.com/MAXDRILL_Top_Hammer_Coupling_Sleeves--8458610_8459120.html]]></link><description><![CDATA[string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability.
(1)Size: R25,R28, R32, R38, T38, T45, T51
(2)Len]]></description><pubDate><![CDATA[20200630]]></pubDate></item>
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<title><![CDATA[NM Type Torque Anchor]]></title><link><![CDATA[https://theonly521zhao.en.ec21.com/NM_Type_Torque_Anchor--9067645_9073496.html]]></link><description><![CDATA[string and tighten。 
2、The pump stator next to a predetermined depth after，400N &amp;bull; m torque is applied to the tubing string in a clockwise direction，Then fixed the tubing string and wellh]]></description><pubDate><![CDATA[20140724]]></pubDate></item>
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<title><![CDATA[High Quality Oil Well Down Hole Tools Tubing Anchor for Tubing Pump/Sucker Rod Pump]]></title><link><![CDATA[https://277064914.en.ec21.com/High_Quality_Oil_Well_Down--8890439_8890542.html]]></link><description><![CDATA[,1.Breif Intrduction 
Our tubing anchor anchor the tubing string in a rod pumping well .The tubing anchor effectively reduce rod, tubing, and casing wear. This cuts operating costs. Elimination of br]]></description><pubDate><![CDATA[20240318]]></pubDate></item>
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<title><![CDATA[Oilfield Drill Pipe]]></title><link><![CDATA[https://hbmccarbon68.en.ec21.com/Oilfield_Drill_Pipe--10964119_10995849.html]]></link><description><![CDATA[string itself is an elastic system, drilling fluid in the process of drilling and the vibration of the drilling string makes the drill pipe under a great load.
Drill Pipe Type:
E75、X95、G105、S13]]></description><pubDate><![CDATA[20200523]]></pubDate></item>

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