... IP22/23, insulation H alternator*Absorber to reduce vibration *Dry type air filter, fuel filter, oil filter *Main line circuit ... pipe, exhaust siphon and flange etc.*Genset type: open type or soundproof/silent type, or trailer type* Maintenance and operation manual, quality certificate, ... 1000 hours of running, whichever comes first.3.More detailed information, pls feel free to contact us at any time. ...