Business scope: Repair,
Construction Labor Subcontracting,
Gas Vehicle Refueling Operation,
Cooling Service,
Gas Burning Appliance Installation,
Machinery And Equipment Leasing,
Heat Production And Supply,
Water Production And Supply,
Metering Technical Service,
Property Management,
Construction Engineering Construction,
Gas Operation,
Sales Of Building Materials,
Engineering Management Services,
Municipal Facilities Management,
Construction Engineering Design,
Sales Of Power Facilities And Equipment,
Environmental Protection Monitoring,