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Item pva2488 Hydrolysis%(mol/mol) 86.0-90.0 Viscosity mpa.S 45.0-55.0 Volatile(%) ¡¨¹5.0 Ash (%) ¡¨¹0.5 Ph value 5-7 Purity (%) ¡y93.5 Kraft paper package with plastic film inside, 20kg&25kg per bag.
