1. Apply glass fibre reinforced plastic (GFRP) cover,with beautiful appearance and high strength, excellent performance in aiti-vibration, anti-aging and anti-corrosion.<BR>2. Apply imported high-quality heat exchanger made of internal thread copper pipe and aluminum,with high energy exchange efficiency.<BR>3. The copper connecting pipe is with high anti-corrosion ability after special treatment.<BR>4. Adopt reliable and durable fan motor with big fan capacity (imported or manufactured by Sino-foreign joint venture), to ensure the full play of the whole product system.<BR>5. Make use of the international famous brand expansion valve to match the heat exchanger, to ensure excellent cooling efficiency of the whole system.<BR>6. The electrical control system can adopt either economic solidstate electric circuit control or micro computer control (with digital diplay of the temperature, auto-testing and auto default warning function).<BR>7. The air outlet is installed directly to air duct of the bus, easy installation,convenient maintainance, not occupy the effective space of the bus.<BR>8. Cooling capaciy is 32,000 Kcal/h.<BR>9. Applicable to the bus with length of 11~12 meters.