The largest Galvanized Iron Sheet Manufacturers in India is Gupta Steel. Galvanized iron sheets, which are widely utilized in the building industry, are made from premium steel. Galvanized corrugated sheets are now the best material for many types of construction, particularly roofing and walling, because to their superior corrosion resistance. For maximum strength, galvanized steel roofing sheets are formed of galvanized steel and have a corrugated pattern. It is portable and simple and quick to erect.