YHM has been focusing on manufacturing fin die and expander for almost 20 years. Now we not only a manufacturer in HE line but also provide service for a whole project, with hairpin bender, fin press, and relevant machines. The famous air conditioner & Heat Exchanger suppliers such as Daikin, Mitsubishi, Panasonic, Haier, Midea, Guntner, Thermofin are all our valued customers. With advanced design and process, using high-quality imported materials, processed by world-class precision processing equipment, to ensure our products first-class quality, Running on high-speed press, the speed of our fin dies can achieve 300 spm and the using life can be up to 10~15 years. Our expanders are aimed at energy-saving, high-efficiency, low noisy.