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<title><![CDATA[EC21 Product Catalogs - mechanical pencil.]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/mechanical_pencil.--0783/1/mechanical pencil..html]]></link><item>
<title><![CDATA[Manufacturers To Undertake Customized Public Decoration Waterproof Aluminum]]></title><link><![CDATA[https://goodwillmetalwork.en.ec21.com/Manufacturers_To_Undertake_Customized_Public--11034030_11034068.html]]></link><description><![CDATA[Mechanical properties of composite panels and panel 
Moment of inertia I (cm4)
19.85
31.67
Section modulus W(cm3)
19
19
Composite plate stiffness E.I(KN cm2)
139000
139000
Aluminum panel
AA5754A(ALMg]]></description><pubDate><![CDATA[20240520]]></pubDate></item>

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