Shijiazhuang Ye sheng chemical technology co., LTD., located in xinji city beautiful, is the collection scientific research development, product manufacturing and sales services for the integration of professional chemical company. Shijiazhuang Ye sheng chemical technology co., LTD. Is a company specializing in the production of synthetic perfume of high-tech enterprises, the main products are acetoacetic acid allyl ester (CAS: 1118-84-9), oh ketoneses moiety (CAS: 91-19-0), 2 - methyl sinensis...