Tender For providing of refilling of fire extinguisher cylinders - water mist type fire extinguisher; 50 litres; more than 5 years,refilling of fire extinguisher cylinders - clean agent type fire extinguisher; 4 litres; more than 5 years,refilling of fire extinguisher cylinders - water based fire extinguisher; 9 litres; 4 years to 5 years,refilling of fire extinguisher cylinders - foam based fire extinguisher; 9 litres; 4 years to 5 years