■ Established in Year 2004, specialist in central air conditioner industry.■ KELING has been included in " Top Ten Manufacturing Enterprises in air/water heat pump in China since 2011 by China HVAC Commission, the only one in Shandong Province.■ With the advanced national standard comprehensive Testing Centers of different heat pump.■ Major in water source heat pump, geothermal heat pump, residential geothermal heat pump, air cooled water chiller and heat pump, packaged rooftop unit, water fan coil unit, cassette type water fan coil unit, air handling unit, etc. with total area 90,000 m2.