Chongqing Nan'an District Pharmaceutical Yi Yao Ji Group Hua Gong / Chemistry Research Institute Xi Yao Zhi Agents Xue Shu Yan Jiu Yi Xue Engineering Patents Licenses Yi Yao Xin Yao Pharmaceutical Technology Gong Cheng Yan Jiu Center Hua He Products Design Compositing企业技术中心创新型企业高新技术企业科技型中小企业国家知识产权示范企业市科技型中小企业