The "Beam" is a type of steel section, commonly referred to as a prefabricated component. It is used in construction, specifically in roofs or floors. The reason for using this steel section is to transfer loads to the main beams. The material of the "Tircheh" can be concrete, steel, or a combination of both. It is important to note that this product is manufactured in various types a... https://shahrmaftool.com/product-category/تیرچه