Shanghai Twisun Bio-pharm Co., Ltd. is a leading professional high technology manufacturer of Intermediates and API’s which was established in Shanghai in 2007. It’s located in the national high-tech business park "Shanghai Torch Innovation Park of Fine chemical Industry". Twisun has more than 3,000 square meters of multi-functional modern research and development centers, and Nantong in Jiangsu in the trial, such possession and production base can provide customers with the tonnage and grad...