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<title><![CDATA[EC21 Product Catalogs - engineering plastic worm]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/engineering-plastic-worm--2808/1/engineering plastic worm.html]]></link><item>
<title><![CDATA[40cr Steel | AISI 5140 GB 40Cr Steel Material | Good Ardenability 40cr Steel Manufacturer]]></title><link><![CDATA[https://songshunsteel.en.ec21.com/40cr-Steel-AISI--11800861_11800867.html]]></link><description><![CDATA[engineering and machinery purpose, and one of the most widely used steel grades. For 40Cr material hardness, specifications and equivalent, please see the table below.After quenching and tempering tr]]></description><pubDate><![CDATA[20230602]]></pubDate></item>

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