... high-efficiency, energy-saving, endurable in use,eco-friendly and materials-saving.3) Processes: Extruded processes, no welding processes. ... 8~15.6) Providing series of heat exchanger parts such as fin, finned tube, finned coil tube.7) Size specifications: OD: ... industry, pharmaceuticals, food, maritime, home appliances such as refrigerator and air-ondition etc.11) Large volume, high quality, most ...