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AOTELAI Chemical is professional in development, production and selling of various dyes. Based on professional technology and international leading technique, we have developed series of high-end metal complex dye, chromium-free dye, benzene-free dye and heavy metal free dye.Relying on stable quality, our products are extensively applied in tobacco industry, such as, in Yuxi Series, Hongta Series, Huanghelou Series, Huangshan Series and Liqun Series. Our product has advantages of high quality, complete specifications and colors. AT series dyes is excellent product with special metal complex structure with high glossiness and transparency. And it has superior weather resistance and fastness than traditional azo dyes. According to customer requirements, we also provide liquid product under high concentration. No matter powder product or liquid product, are well recognized by wide users.