Located in Spring Cityof northern ChinaChangchun, Changchun Hongji Automobile Device Manufacturing Co., Ltd. is adjacent to the largest automobile manufacturing base in ChinaFAW. Our company specializes in manufacturing high- frequency welding pipemaking machine for automobile radiators and selling high- frequency welding aluminum with various specifications. The products are mainly applied in automobile heat dissipation industry. The company is provided with definite design and processing capacities and currently is staffed by 45 persons including 10 technical developers. With expansion of enterprise business, the scale of company is also expanding. By introducing advanced technology and process abroad, the high-frequency welding pipe-making machine designed and manufactured by our company has reached the most advanced technical and automation level in this field at home and abroad. The high-frequency welding pipemaking machine equipments sold by our company are all under good operation, which are highly praised by users.The company is advancing toward the goal with production specialization, large scale, diversification and high class by taking the market demands as orientation, taking the interests of clients as the center and taking the product quality as the guidance as well as taking the after-sale service as the guarantee.In recent years, along with the output demand by various designs and globalization, we have highly stressed the performance of our product and the productivity by considering from the environment.1. Study the rolling shaping advanced technology of the period and since then, Hongji has began its develop.2. Establish the stabilization, integration and automation of rolling shaping gradually in the domestic.3. As the development of world automobile industry, the technology has also developed.The excellent molding technology and equipment fitting has achieved high assessment by large enterprises in domestic.