GI (galvanized iron) and aluminum corrugated sheets are sheets of metal that are formed into a series of ridges and valleys, or corrugations. These sheets are used in a variety of applications, including roofing, siding, and structural support. GI corrugated sheets are made from steel that has been coated with a layer of zinc, which helps to protect the steel from corrosion and weathering. They are strong and durable, and are commonly used in construction and industrial applications. Aluminum corrugated sheets are made from aluminum, which is a lightweight and corrosion-resistant metal. They are often used in applications where weight is a factor, such as in transportation or in the construction of temporary structures. Aluminum corrugated sheets are also commonly used in roofing and siding applications. Both GI and aluminum corrugated sheets are available in a range of thicknesses and sizes, and can be cut and shaped to fit a variety of applications. They are easy to install and maintain, and are known for their durability and long lifespan.