:Manufacture of unsaturate polyester resin, alkyd resin, insulate paint, plasticicer, maleic acid, malaic acid and tartaric acid Specificationsmaleic acid anhydride 1,Good quality and ... etcApplicationManufacture of unsaturate polyester resin, alkyd resin, insulate paint, plasticicer, pesticides,fumaric acid,maleic acid, malaic acid and tartaric acid, succinic acid , anhydride ...