Xi’An YAYUN Bio-technology Co., Ltd. is a professional company specialized in research, production and import and export trade of dyes intermediate, medical intermediate, essence, perfume and textile auxiliaries. It is located in Xi’An City, famous historic and cultural city. And it has production base in Zhejiang and Hebei Province. Currently its main products are dyes, dyes intermediate, medical intermediate, essence, perfume, textile auxiliaries, ultraviolet light absorber. They have bee...
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