Bengbu Yongfeng Dyestuff Chemical Co., Ltd
Bengbu Yongyan Dyestuff Chemical produces sulfur dyes since 1968, with over 40 years of experience in sulfurized variegated dyes.
Introduction
Bengbu Yongyan Dyestuff Chemical Co., Ltd., established in 1968, is a pioneering national high-tech company with over four decades of expertise in sulfur dye production. Renowned for our extensive range of sulfurized variegated dyes, we offer high-quality products that cater to various industries, with a history spanning more than 40 years in this field.

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Chongqing Technology, founded by pharmaceutical experts, develops functional materials and chemicals for academic and industrial use with an R&D-focused model offering clear price advantages.