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Shanghai Yonglong Chem-Tech Co.LTD
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About Us
SHANGHAI YONGLONG CHEM-TECH CO., LTD is a large company that is a collection of production, R&D, and sales. And there are 3 big production lines. The production ranges from all kinds of acid, leather and intermediate and pharmaceutical dyes, and agriculture chemicals intermediates.
As the most important dyes of our company, P-nitroaniline, P-Phenylene diamine, DASA and 4’4-Diamino-2-sulfodiphenylamine have received approval from our clients. Thanks to the board range of the colorattas in our ...
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