We are Nanjing Zelang Medical Technology Co.Ltd ,which is one of the leading manufacturers and exporters of botanical, herbal and plant extracts in China. Most of our products are sold in USA, Singapore, Malaysia , Vietnam, taiwan and so on!.Depending on China Pharmaceutical University and Nanjing University, we do our best to produce good herb extract for all over the world! We have a series of scientific instruments such as Waters HPLC,UV to control and ensure the product quality. We could sup...