<![CDATA[EC21 Product Catalogs - cas 79 0]]> <![CDATA[1,1,2,2-Tetrachloroethane CAS 79-34-5]]> <![CDATA[China Vinyl Resin/ China VC-VA Copolymer / Terpolymer Resin]]> <![CDATA[China Vinyl Resin/ China VC-VA Copolymer / Terpolymer Resin]]>