Ningbo Rongzhi Automation Technology Co., Ltd. is a specialized company in development and manufacturing fin machine with leading technology. Our fins can be widely used in heat exchanger in industries including petrochemical industry, Aerospace industry, Power Electronic industry, cloud server industry, and construction machinery industry etc. We are currently the only Chinese high-tech company who is specialized in this area. Any time you may want some new machine, new tooling or trying on some new fins, we would always be there at your service. Our product range includes: 1. High Precision Fin Press Machine 2. Automatic Punching Machine 3. Fin and Tooling 4. Customization and Research on fin machine, punching machine and fin tooling. Show More