... resistance, 3.lightness, 4.high intensity 5.insulation Pultruded Window & Door Fiberglass Profiles 1.The picture listed 3 specificions ... frames.2.Customized any FRP profiles,fiberglass products,fiberglass grid,fiberglass channels.fiberglss grating.FRP gratings,etc.3.Also ... : 4.High strength,lightness,fire retartant 5.we can design and manufacture products according to the needs of our customers ...