With 15 years history in HVAC industry, KELING is Top 10 manufacturing enterprises in water source heat pump in China since 2011, major in HVAC system design, manufacture,installation,after sales service,energy saving solutions.Excellent Performance in the energy saving filed, KELING is selected on the list of the Clean Heating Plan issued by the People’s Government of Shandong Province in 2018, together with Hisense.