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Qingdao Yuyin Chemical Co., Ltd was founded in 2002. It is a corporation engaged in producing and exporting chemical materials, food additive and other chemicals. Our main products are Sodium Tripolyphosphate(***P), Sodium Metabisulphite, Sodium Metasilicate, Soda Ash, Caustic Soda etc. We mainly export to Asia, Europe, Africa and South America etc. With the development of the co***ny, we have expanded customers globally. With well-deserved reputation, good service and qualified products, we have won the do...
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