Scrub,
 suck a one-time, wash blot ground, clean as new, dirty water, soil, 
sand, oil suction sewage box all; To clean the material of different 
ground, such as epoxy resin floor, the paint surface, concrete, tile 
floor, etc.
Applicable objects include: factories, 
warehouses, shopping mall, shopping center, supermarket, parking lot, 
airport, railway station, bus station, subway station, hotels, resorts, 
hospitals, schools, office buildings, exhibition hall, theater, stadium,
 government agencies, such as procter & gamble company.