Galvanized colour coated coils are steel coils that have undergone a galvanization process to protect them from corrosion, followed by a coating of colour to enhance their aesthetic appeal and provide additional protection. These coils are commonly used in construction, roofing, and various industrial applications due to their durability, corrosion resistance, and attractive appearance. The galvanization process involves coating the steel with a layer of zinc, which acts as a protective barrier against rust and corrosion.