... :1.long life: excellent weather resistance, anti-aging, anti-cold, anti-heat, anti-dry and moisture-resistant, flame retardant, moisture ... light transmission is good, not channeling wire, no distortion, anti-ultraviolet, tensile strength large, long life. Attractive appearance, ... doors and windows can be assembled; corrosion-resistant, high strength, anti-aging, fire performance, do not need paint color ...