Tender for Supply Of Chemicals - Tris Hydroxymethyl Aminomethane Brand Sigma Aldrich, Cas No 77-86-1 Product Code 252859 , Pyromelitic Acid, Brand Sigma Aldrich Cas No 89-05-4, Produt Id B4007 , Pyromellitic Dianhydride, Cas No 89-32-7, Product Id 412287 , Phthalic Acid Brand Sigma Aldrich Product Code 402915 Cas No 88-99-3 , Isophorone Diamine, Brand Sigma Aldrich, Product Id 8. 14123, Cas No 2855-13-2, in Thumba - Kerala

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