Chong Hui Texas Air Conditioning Equipment Co. in the central air conditioning and did not end equipment manufacturing and sales, construction as one of the enterprises., Is the name of the damper manufacturer. Produced by the central air-conditioning end products: clean air conditioning, cleaning equipment, magnesium extruded phenolic composite duct, a large modular roof ventilators, ventilation without power, no power cooling towers, closed cooling tower, the new wind generating units, each kinds fan, fan coil units, tanks products, air filter products, cable trays, various wind systems with valves, muffler, HIP me.