HEATING, REFRIGERATING, VENTILATING AND WATER SUPPLY APPARATUS, NAMELY, REFRIGERATORS, ABSORPTION REFRIGERATORS, REFRIGERATION EQUIPMENT IN THE NATURE OF ABSORPTION CHILLERS AND ADSORPTION CHILLERS; FOOD AND BEVERAGE CHILLING UNITS; REFRIGERATING MACHINE IN THE NATURE OF CHILLING UNITS FOR INDUSTRIAL USE; COMBINATION ABSORPTION REFRIGERATION CHILLING MACHINES AND ELECTRIC HEATERS FOR COMMERCIAL USE; COMBINATION ADSORPTION REFRIGERATION CHILLING MACHINES AND ELECTRIC HEATERS FOR COMMERCIAL USE...