Hunan Weite Pharmaceutical Co. , Ltd. , formerly known as Witt (Hunan) Pharmaceutical Co. , Ltd. , Witt (Hunan) Pharmaceutical Co. , Ltd. was founded in March 2003, located in Changsha National Biological Industry Base, covering an area of 100 acres; August 13,2019 through the share change to Hunan Weite Pharmaceutical Co. , Ltd. . Hunan Weite Pharmaceutical Co. , Ltd. is a production, sales, R & ...