N-Methyl Pyrrolidone, Aniline, Adipic Acid manufacturer / supplier in China, offering Industry Grade Propylene Glycol/ CAS No. 57-55-6/ Mono Propylene Glycol, N-Methyl Pyrrolidone NMP CAS 872-50-4 Organic Intermediates Industry Intermediates, Acetic Acid CAS 64-19-7 Industrial Grade Acetic Acid CH3cooh Highly Corrosiveacetic and so on.