1,USA EPA, Europe E-Mark, CPCB & CE. 2,12kva generator with yangdong engine 3,electric govrnor,muffler/silencer 4,OEM offer ... bearing or double bearing Optional accessories available for easy paralleling with mains or other generatorsStandard AVR controlledEasily installation and maintenanceManufacture ... 180 seconds unload. 50Hz 220V 12kva generator yongdong electric governor with CE certification