Tong Da chemical Co.ltd is a pharmaceutical intermediate enterprise with high technology and was founded in 1995,it covers an area of 22.8 acres and have 600 employees,including university degrees and technical staff accounted for more than 30% of them and also it is a high-tech company which spcializes in the researching,producing and trading for the pharmaceutical intermediate,moreover the technology of series of intermediates advanced in the worlds.,welcome all of friends from home and abroad to negotiate business.