Htr Energy Recovery Components, Anti-Mildew and Anti-Bacterial Nano-Memberane manufacturer / supplier in China, offering Long Lifespan of 366*194*366mm Heat Exchanger Core Air to Air Ventilation System, Low Resistance of 366*194*366mm Heat Exchanger Core Air to Air Ventilation System, Avoid Condensated Water of 366*194*366mm Heat Exchanger Core Air to Air Ventilation System and so on.