Co-founded by several PhD students from Northeastern University in 2017, Nanjing Hanhua Fluid Technology Co., Ltd. (NCF for short) is awarded National High-Tech Enterprise and High-Level Entrepreneurial Talent-Introduction Enterprise in Gulou District in Nanjing, Jiangsu Province. Based on calibration under working conditions, the company is mainly engaged in energy management and control of gas system in iron and steel enterprises, accurate measurement products and solutions for industrial enterprises, supply of automatic system, and solutions and system of artificial intelligence in industry. Hanhua is the earliest commercialized company engaged in WCC system in China. Our solutions have been adopted in world-renowned enterprises. Independently developed by Hanhua, the NCF-WCC system has found application in major domestic large-scale steel conglomerates. We have visited more than 500 domestic industrial sites, designed for more than 70 companies, and completed more than 110 technical solutions. Our representative customers include Cargill Americas Inc, Baosteel etc.. Currently Hanhua has 35 intellectual property rights (including 14 invention patents, 4 utility model patents, 13 software copyrights, 3 registered trademarks and 1 design patent).