Nude Fire Extinguisher

The iron Can for Shaving Foam in the Toilet/Rest Room is easily rotten as always touched with water so often. This can be avoided with using Polycarbonate Cylinder as Pressure containers. This kind of principle applies to all kinds of Pressure Containers in the World. Acccordingly all kinds of fire extinguishers in the world, even spray types as well as normal fire extinguishers in iron-clad or aluminum/stainless steel can be replaced with my Nude Polycarbonate Plastic Cylinders with much lower expenses/cost/production costs and lighter weights than any other materials in the world.