Model patent certificate
Energy saving system of crane based on extended range hybrid power
Invention Patent a battery pack
An extended range hybrid power system for crane
Power supply system of variable speed generator set
Electrical control and detection device of generator set
Intelligent load test system for generator set
Waterproof silent generator set/ Waterproof silent type
system of port power house with retractable walkway rail mechanism and modified mechanism
A new patent of battery pack
A new patent of battery pack
A new type of secondary battery patent
Fuel tank for diesel generator set