Chenxi Hanqing Biological Co., Ltd. is a private high-tech enterprise, the Macleaya cordata extract and the high-grade tea saponin are the main products of the company. The company was founded in 1997, but it has owned more than 20 years research and experience accumulation in the area of tea saponin. In recent years, Hanqing Biological Co.Ltd. further developed the Macleaya cordata products which provided related solution for veterinary drugs,...