With over ten years\'development, Zhengzhou Liwei Biological Industry Co., Ltd. has been a famous R&D manufacturer who an advanced production level. We can accurately develop and manufacture the following products: cholesterol, ox-bile powder, refined ...

Zhengzhou Liwei Biological Industry Co., Ltd. is a specialized biological and chemical products manufacturer exporter in China with strong technological personnel, advanced production technology complete analysis test equipments. With over fifteen ...