Fiberglass Tonneau Cover: 1)Made by FRP (Fiber Reinforced Plastics) 2)highly corrosion resistant 3)better thermostable SpecificationsFiberglass Tonneau Cover: 1)Made by FRP (Fiber Reinforced Plastics) 2)highly corrosion resistant 3)better thermostableFiberglass Tonneau Cover1.Made by Fiberglass,FRP (Fiber Reinforced Plastics),highly corrosion resistant,better thermostable,ametaboly.2.Use our own ...