FRP roofing sheet are fiberglass reinforced polyester, commonly known as fiberglass reinforced plastic, also known as transparent tiles, anti-corrosion tiles, sunshine tiles, etc. Its temperature resistance range can reach -40 ° -120 °, and it is widely used for roof and wall lighting in industrial plants, large markets, municipal engineering, commercial facilities, flower and vegetable greenhouses, and other ordinary steel structure buildings. FRP roofing sheet is shatter resistant and strong impact resistant, which can prevent the impact of wind, snow and hail, and avoid water leakage caused by nail hole expansion. It belongs to right composite film, resin and glass fiber, which are pultruded by oven abrasives. The commonly used FRP skylight tiles have the following regular thicknesses: 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, and 3.0mm. At the same time, the colors include transparent, lake blue, green, grass green, brown, blue, milky white, emerald green, advertising white, gray,…