... High corrosion resistance performance,Heatresisting performance,Prevent mildew performance,Aluminum design is beautiful.3.Alloy nameplate:6061.6063 ... , Powder coating, Anodic oxidation, Electrophoretic coating, grainy transfer.5.Aluminum extrusion process: Drilling, Cutting, Stamping, Milling. 6. Fetures1 ... achieve the purpose of efficient fire-fighting aluminum Portable ion fire extinguishers shell