1.diesel generator doosan,Yanmar,Lister petter 2.9kva to 2200KVA 3.Certificate:CCS,ISO GENERATOR SETS POWERED BY PERKINS ENGINEFrequency50HZ60HZVoltage400V440VSpeed1500RPM1800RPMOutput range7KW/9KVA---1760KW ... , YANAN will provide the free easy-damageable spare parts of diesel engine caused by our quality of production or raw material ...