Aluminum-magnesium-manganese metal roofing coil stock is a cost effective roofing and exterior wall material. Aluminum coil stock is widely used in the construction industry and has played an important role in the development of modern architecture towards comfort, lightweight, durability, economy, and environmental friendliness. AA3004 aluminum-magnesium-manganese alloy is widely recognized as a roofing and exterior wall material with a design life …