Roof aluminium sheet are Aluminum-Magnesium-Manganese alloy 3003 3004 special used for metallic roofing, the thickness is 0.5mm-1.2mm. Typically, the 3003 and 3004 aluminum roofing sheet are coated with PE and PVDF coating to have lovely look and long provider existence. After shade coated, the aluminium roofing sheet machine can withstand corrosion and sunshine, and the lively life...