Energy saving of central air conditioning ventilation system; Natural gas boiler waste heat recovery; Recovery of waste heat from ovens, drying rooms, and drying towers; Industrial waste heat recovery from vibrating bed, fluidized bed, and fluidized bed processes; Energy saving of air conditioning units in constant temperature and humidity purification plants of electronic and pharmaceutical factories Coal mine exhaust heat recovery Innovate and save energy, repay society! Technical hotline 13071172512