Hangzhou Keteng Biological Products Co., Ltd. is a high-tech enterprise engaged in the research and development and production of three kinds of medical biomaterials. It has a pharmaceutical preparation research and development center and a GMP clean workshop for medical devices. Preparation products have been sold in more than 30 countries, and there are more than 50 stable brand agents abroad. Hangzhou Keteng Biological Products Co., Ltd. has 440 pieces of trademark information, 8 pieces of patent information1and 3 pieces of copyright information, and also has an administrative license of 3 1.