We, Henan Liwei Biological Pharmaceutical Co.,Ltd is a professional manufacturer of Bio-Pharmaceutical. We are nominated as National High-Tech Enterprise. The plant has 89,000 m2. We have produced cholesterol, 7-dehydrocholesterol, Ox bile pwoder, cholic acid and collagen. Products are widely used in liquid crystal industry, pharmaceutical, food, feed, cosmetic industry. We are the only one supplier for Liquid crystal cholesterol in the world which is recognised by the customer. We have the most advance production line and QA test equipment. At present, we have 11 patents. We are listed as the National Plan for national technology development. We are working with high reputation university and research organisation, such as: Chinese Academy of Sciences, Beijing University of Che..