The aluminum roofing sheet is also called the corrugated aluminum plate, pressed aluminum plate, corrugated aluminum sheet or aluminum tile, it is one of the commonly used products in building, currently, it is more and more popular and has a tendency to replace stainless steel and iron plate. Comparing with the common aluminum sheet, the aluminum roofing sheet has many advantages, the first is the density of it is smaller than the iron, so the weigh of it is light than the iron sheet and the stainless steel. Besides, the aluminum sheet has a good anti-rust effect, the exposing to the rain, sun and the snow won’t cause rust to it, unlike the iron, which will get rust if it is in wet environment.