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<title><![CDATA[EC21 Product Catalogs - 6 strings]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/6_strings--2644/1/6 strings.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[API Certificated Clamps Drilling Rig Spare Parts for Polished Rod]]></title><link><![CDATA[https://zhongshigroup.en.ec21.com/API_Certificated_Clamps_Drilling_Rig--11790563_11790773.html]]></link><description><![CDATA[string. The polished rod clamp is an important part connecting oil pump and sucker rod, it is required not only reliable, have a certain capacity, but also can not cause damage for sucker rod.
1. Che]]></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[Down the Hole Bits, DTH Bits, DTH Drill Bits, DTH Button Bits]]></title><link><![CDATA[https://gzvilong.en.ec21.com/Down_the_Hole_Bits_DTH--10772843_10772872.html]]></link><description><![CDATA[string rotates while the drilling hammer continuously strikes down into the rock. The DTH drill rods transmit the necessary feed force and rotation to the DTH hammer and bit, as well as compressed ai]]></description><pubDate><![CDATA[20210520]]></pubDate></item>
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<title><![CDATA[Steel Sucker Rod]]></title><link><![CDATA[https://hbmccarbon68.en.ec21.com/Steel_Sucker_Rod--10964119_11033249.html]]></link><description><![CDATA[string, and up through polished rod connection on the pumping unit or PCP motor, down connection on the pump piston or PCP, its role is to ground the reciprocating movement of the pumping unit horseh]]></description><pubDate><![CDATA[20200523]]></pubDate></item>

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