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<title><![CDATA[EC21 Product Catalogs - ca si]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/ca_si--0548/1/ca si.html]]></link><item>
<title><![CDATA[Cas 89-32-7 Pyromellitic Dianhydride]]></title><link><![CDATA[https://dingyanchemical.en.ec21.com/Cas_89_32_7_Pyromellitic--11841248_12064644.html]]></link><description><![CDATA[
&gt;150 μm，Wt% 
Provide information 
&gt;80 μm，Wt% 
95.0min 
Metal ions ：Ni, Co, Mn, Sn, Zn, Al,
Si，ррm 
1.0max 
Cr, K, Na, Cu, Fe, Ca ，ррm 
2.0max 
Total Metals ，ррm 
20.0max 
]]></description><pubDate><![CDATA[20260527]]></pubDate></item>

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