... matrix , alkali-free fiberglass as a reinforcing material Fiberglass Grating based on unsaturated polyester resin matrix , alkali-free ... , gray , red , blue , black, natural color etc.Glass steel grating with lightweight, high strength , tough , solid , non-slip , corrosion- ... elements in a corrosive environment .We can design the Mesh according to customer demand ,Please check the general specs ...