N-Methyl Pyrrolidone, Aniline, Adipic Acid manufacturer / supplier in China, offering High Quality Industrial Grade Aniline CAS 62-53-3, Industrial Grade 99.95% Min Aniline Oil CAS No. 62-53-3 for Ink Dyestuffs, Electronic Grade Solvent N-Methyl-2-Pyrrolidinone NMP CAS 872-50-4 for Cleaning and so on.