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<title><![CDATA[EC21 Product Catalogs - jtt]]></title>
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<title><![CDATA[Road Culverts Corrugated Metal Pipe]]></title><link><![CDATA[https://sunnyqijia.en.ec21.com/Road_Culverts_Corrugated_Metal_Pipe--10579401_10579412.html]]></link><description><![CDATA[JTT 791-2010 ,or AASHTO M36.
▶ TECHNICAL ADVANTAGES
1. High strength:1.5-3 times stronger than concrete 
2. Light weight:1/15-1/5 weight of same specification concrete weight.
3. Long service life:]]></description><pubDate><![CDATA[20240320]]></pubDate></item>

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