... voice,long service life 3.with a drainage pipe vacuum pump , Industrial vacuum cleaner MS220 Description:1.Industrial-type ... , economocal, durable,etc;2.Three-phase industrial vacuum bypass pump, low noise, long service life;two filtration systems; can ... brush vacuum cleaners, vacuum cleaners Pa pipefish, dust lane, water lane, dust collection barrels Technical specifications: Model VC220 Voltage 220V ...