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<title><![CDATA[EC21 Product Catalogs - 22 strings]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/22_strings--2644/1/22 strings.html]]></link><item>
<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>
<item>
<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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