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<title><![CDATA[EC21 Product Catalogs - passing through tubes]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/passing_through_tubes--2842/1/passing through tubes.html]]></link><item>
<title><![CDATA[Oil Well Water Well Drilling 5inch 20ppf Oil Casing Carbon Steel Pipe]]></title><link><![CDATA[https://zhuyan230401.en.ec21.com/Oil_Well_Water_Well_Drilling--11826223_11829234.html]]></link><description><![CDATA[passes through Beijing Shanghai Railway, Beijing Shanghai Expressway, Shihuang Expressway,National Highway 104 and National Highway 307, with superior geographical location and convenient water and l]]></description><pubDate><![CDATA[20230803]]></pubDate></item>
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<title><![CDATA[SAE4130 Cold Drawn Seamless Steel Pipe]]></title><link><![CDATA[https://haihuisteel.en.ec21.com/SAE4130_Cold_Drawn_Seamless_Steel--11814565_11816353.html]]></link><description><![CDATA[tubes are put on annealing furnace for heat treatment and normalising.
Straightening
Post annealing, the goods are passed through a seven roller straightening machine to achieve proper straightening ]]></description><pubDate><![CDATA[20230706]]></pubDate></item>
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<title><![CDATA[High Frenquency Welded Steel Pipe Production Line]]></title><link><![CDATA[https://txhmachine.en.ec21.com/High_Frenquency_Welded_Steel_Pipe--11854146_11875619.html]]></link><description><![CDATA[passed through a series of rollers and formed into a cylindrical shape in the forming mill. Next, the edges of the steel strip are heated using high-frequency induction to facilitate welding. The hea]]></description><pubDate><![CDATA[20231214]]></pubDate></item>

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