shanghai yonglong chem-tech co.ltd
P nitroaniline, ONA
Shanghai YongLong Chem-tech Co., Ltd is a group that combines production, R&D, and sales all into one large company. There are two production bases in Hebei and Shandong province. All of them have their own R&D center as well as sales platform. All of our products have passed ISO9001-2000 international Standard Quality System Certification.
The production involves: dyes and intermediates. Dyes can be divided into direct, acid, basic and special dyestuffs, and the intermediates into dye intermediates, pharmaceutical intermediates and pesticide intermediates.