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<title><![CDATA[EC21 Product Catalogs - threaded coupling steel]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/threaded_coupling_steel--2630/1/threaded coupling steel.html]]></link><item>
<title><![CDATA[BHJG230 Bucking Machine]]></title><link><![CDATA[https://lzbhmachine.en.ec21.com/BHJG230_Bucking_Machine--11540564_11540565.html]]></link><description><![CDATA[coupling. The Buckup clamp is driven by pneumatic cylinder and it is used to fix the pipe. the screw on torque value is output by tension sensor and controlled by PLC system.
This machine can finish ]]></description><pubDate><![CDATA[20220308]]></pubDate></item>
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<title><![CDATA[Slim Hole Polished Rod Coupling]]></title><link><![CDATA[https://theonly521zhao.en.ec21.com/Slim_Hole_Polished_Rod_Coupling--9067645_9068018.html]]></link><description><![CDATA[Coupling ,sub-coupling ,polished rod coupling are designed in accordance with API SPEC 11B and made of fine carbon-steel or alloy steel(equivalent to AISI 1526 or AISI 4135).
Normally, they have two ]]></description><pubDate><![CDATA[20140724]]></pubDate></item>

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