Refilling and painting of fire fighting equipment at various substations(22.5 kg CO2 type 11 kg. CO2 type 09 kg CO2 type 4.5 kg CO2 type 2.2 Kg. CO2 type/2Kg. CO2 type 45/50 Ltr. Mechanical Foam type 09 Ltr. Mechanical Foam type 05 Kg., 06 kg. & 09