37 INSTALLATION, CLEANING, MAINTENANCE AND REPAIR OF WATER TREATMENT AND CONDITIONING EQUIPMENT
39 DELIVERY SERVICES IN THE FIELD OF WATER TREATMENT AND CONDITIONING EQUIPMENT AND BOTTLED WATER BY LAND
42 RENTAL OF WATER TREATMENT AND CONDITIONING EQUIPMENT; TESTING, ANALYSIS, AND EVALUATION OF WATER QUALITY; AND CONSULTATION AND RENDERING ADVICE IN THE FIELD OF WATER TREATMENT AND CONDITIONING EQUIPMENT FOR HOME AND COMMERCIAL APPLICATIONS