Adipic Acid, Propylene Glycol, Maleic Anhydride manufacturer / supplier in China, offering High Purity Diethylenetriamine (DETA) 99% for Epoxy Curing & Chelating Agents, Bulk Supply Monoethanolamine Chemical Intermediate, 99% Pure Monoethanolamine – Industrial Solvent & Cleaning Agent and so on.