CONCENTRATE FOR CLEANING PAVING STONE TENZI "CLEANING PAVING STONE 1" 1 L Super strong concentrate for degreasing and thorough cleaning of paving stones (concrete blocks, Polbruk, Pozbruk, Bauma blocks) from petroleum-based dirt such as: grease, oils, tar substances, dirt from operation, fuels, etc. Recommended for heavily contaminated surfaces around workshops, production halls, at petrol stations, transport bases, parking lots, garages, etc.