| starter shell | cast by 800 ton die casting machine and precision finished NPR75 by High speed CNC machine tools |
| machining centers | precision finishing |
| bearings | NSK,C&U famous brand production etc |
| rectifier,diode,electronic regulator,Electronic regulator chip | absolutely use Taiwan,Korea,Japan famous brand Electronic production |
| carbon brush | USA MORGAN carbon brush,Fuji carbon brush etc carbon production company |
| plastic,nylon High temperature resistant parts | heat resistance:≥230°C |
| hardware components(including pulley) | Environmental treatment,conform to European unio and International Environmental standard |
| copper foil | heat resistance:≥230°C,withstand voltage:≥1000V |
| armature | balanced by high speed balancing machine |
| stator | heat resistance:≥180°C,withstand voltage:≥1000V |
| process | High temperature quenching process |
| The durability test | ≥18000times |
