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Premium Quality Diethylene Glycol-Phthalic Anhydride Polymer CAS No. 32472-85-8 for TPU, TPE, Find Details and Price about Polyester Polyol TPU Polyether Polyol from Premium Quality Diethylene Glycol-Phthalic Anhydride Polymer CAS No. 32472-85-8 for TPU, TPE - Ningbo Jinao Enprotech Co., Limited