Oil cost-free Silent piston AIR CZPT rotary high stress Dental noiseless oil-much less portable  Ac 550W cooper motor 9L 10L tank
Model: U550-10

Characteristics:
* Low sound, <70dB
* Oil cost-free, CZPT helpful
* a hundred% copper motor, longer doing work lifestyle
* Reduced power intake, higher powerful
* Straightforward structure, effortless routine maintenance
* Secure, tough good quality