"SUPPLY OF CORRECTIVE AND PREVENTIVE MAINTENANCE SERVICES FOR FIRE EXTINGUISHERS AND/OR SUPPLY OF FIRE EXTINGUISHERS, SUPPLIES, AND REFILLS THEREOF, IN ACCORDANCE WITH THE QUANTITIES ESTABLISHED IN THE DOCUMENT ENTITLED ANNEX 1, MATERIALS AND COMPONENTS FOR FIRE EXTINGUISHERS, WHICH FORMS AN INTEGRAL PART OF THIS CONTRACT. PRICES ARE SUBJECT TO CHANGE DEPENDING ON THE BRAND AND INVENTORY PRICE ADJUSTMENTS. INDUSTRIAL AND SAFETY ELEMENTS AND MATERIALS NOT INCLUDED IN THE OFFER P