Shanxi Huaxin Electric’s Transformer series have been included into the “National Recommended Catalogue of Industrial Energy-saving Technology and Equipment (2018)” by the Ministry of Industry and Information Technology Department. The recommended catalogue can be found in the below URL:　　https://www.miit.gov.cn/cms_files/filemanager/oldfile/miit/n1146285/n1146352/n3054355/n3057542/n3057544/c6469714/part/6469790.pdf