Zhengzhou Liwei Biological Industry Co., Ltd. is a specialized biological and chemical products manufacturer and exporter in China with strong technological personnel, advanced production technology and complete analysis and test equipments. With over fifteen years' development, we had fully grasped the manufacturing technology of cholesterol, collagen, ox-bile powder, refined cholesterol, ox and sheep cholic acid, etc., and become a famous R&D manufacturer and exporter in China with internationally advanced level.
