Maintenance And Recharge Vp-6. Maintenance And Recharge Vp-5. Maintenance And Recharge Vp-1. Maintenance And Refueling Of Extinguishing Agents Vvk-3,5. Maintenance And Refueling Of Extinguishing Agents Vvk-1,4. Technical Diagnosis Of Vvk-1,4 Fire Extinguishers. Technical Diagnosis Of Fire Extinguishers With Preparation Of The Act Of Write -Off. Ongoing Repair Of Vp With Replacement Of The Sealing Ring. Ongoing Repair Of Vp With Replacement Of The Pressure Indicator. Ongoing Repair Of Vp With Replacement Of Zpp. Ongoing Repair Of Vvk With Replacement Of Zpp. Current Repair Of Vvk With Replacement Of A Rod With A Valve. Completing Fire Extinguishers With Safety Check. Education Of Vvk With Socket.