Tengzhou Yuantong Aroma Chemicals Co.,Ltd which is manufacturing of the heterocyclic sulphuretted aroma chemical annually in total .we have many kinds of products: Pyrazine,Thiazole,Furans,Pyrrole,Thiophene,Pyridine,Sulfide etc.under strict quality It owns R&D division and 3 processing lines, two sets of low temperature reaction facilities,.It actually has developed into one of the larger scale and best assortment in China flavor and food ingredients. control system of ISO9001 2000 and kosher c...
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