Roof aluminium sheet are Aluminum-Magnesium-Manganese alloy 3003 3004 special used for metal roofing, the thickness is 0.5mm-1.2mm. Usually, the 3003 and 3004 aluminium roofing sheet are coated with PE and PVDF coating to have beautiful appearance and long service life. After color coated, the aluminium roofing sheet system can withstand corrosion and sunshine, and the active.. read more →