Visual inspection of fire extinguishers

The barrel of the fire extinguisher is severely rusted (the patent leather is widely peeled off, and the rust area is greater than or equal to 1/3 of the cylinder area) or the connecting part of the cylinder is severely rusted. The inner buckle type head does not have or does not have unloading screws or fixing screws. The fire extinguishing dose is greater than or equal to 4Kg, and the fire extinguisher is not equipped with an intermittent injection mechanism. The barrel of the fire extinguisher is severely deformed. There is no manufacturer name and year of manufacture. Fire extinguishers must be scrapped if they reach the following age from the date of manufacture: 8 years for portable dry powder fire extinguishers.