... a reinforcing material Fiberglass Grating based on unsaturated polyester resin matrix , alkali-free fiberglass as a reinforcing material , the FRP products refined by a ... , green , gray , red , blue , black, natural color etc.Glass steel grating with lightweight, high strength , tough , solid , non-slip , corrosion-resistant ... general specs in below: Please contact me to learn more: Fiberglass Grating