Epoxy Resin Curing Agent (DMP30 and TP31), 2-(2-aminoethylamino) Ethanol (aeea ), EDTA and EDTA-2na, Edta-4na, Edta-fena, Edta-cana2, Edta-znna2, Edta-cuna2, Edta-mnna2, Edta-mgna2 and other Metal Salts, High-purity Lignin, Lignin Polyether Polyol, Lignin Phenolic Resin Glue etc.