Self-Protecting Layer: When aluminium comes into contact with exposed to oxygen in air or water, a thin layer varieties, clear layer of aluminium oxide (Al₂O₃). This layer is extremely dense and adheres tightly on the floor, blocking further oxidation or corrosion. Aluminium is really a very low-density, metallic white steel https://shedsandgarages80123.bloggactif.com/38887508/examine-this-report-on-aluminium-greenhouse