CONCENTRATE FOR CLEANING PAVEMENT STONES TENZI "CLEANING PAVEMENT STONE 1" 5 L Super strong concentrate for degreasing and thorough cleaning of paving stones (concrete stones, Polbruk, Pozbruk, Bauma cubes) from oil-derivative dirt such as: greases, oils, tar substances, operational dirt fuel, etc. Recommended for heavily polluted surfaces around workshops, production halls, petrol stations, transport bases, car parks, garages, etc.