Floor cleaning machines; machines for cleaning of vertical surfaces and windows using high pressure water; machines for the removal of graffiti and other dirt in an urban environment, namely, wall-scrubbing machines; cleaning appliances utilizing steam; hot water high-pressure washers for cleaning surfaces; cold water high-pressure washers for cleaning surfaces; sandblasters; hydro-sandblasters; motorized floor sweepers; electric traction floor scrubbing and drying machines for cleaning all t...