Membrane structure carport (carport membrane structure usually used in doing landscape, parking shed, beach shade, etc.) shed membrane structure of the film refers to the material, is PVC, this is a unified carport outside to do, is to quote the words of the area to be calculated , the small size is slightly higher price, then the price can be a large area slightly smaller films do this because it is shed material, its features are: 1, good transparency, no yellowing in the sun exposure, spray 2 , impact resistance, strength to fight 250-300 times that of ordinary glass, glass 2 times, without the risk of breaking 3, flame retardant, is a flame retardant B1 level, no drops, no gas, anti-aging, life long.