Treatment of surfaces in water systems, water cooling towers, air handling rooms, air handling room surfaces, heating systems, ventilation systems, air conditioning systems, and parts thereof; treatment of metal surfaces for protection against corrosion; treatment of metal surfaces in water systems, water cooling towers, heating systems, ventilation systems and air conditioning systems for protection against corrosion; consultancy in the field of treatment of metal surfaces in water systems, ...

Cleaning of cool rooms, refrigeration units, cold storage rooms, and parts thereof