... ,concave,flat,covered UV reisistant,fire retardant,high strength ISO 1)Name:high strength fiberglass gritted grating 2)Material:fiberglass&resin&mixture3)Surface:concave grate,flat ... (1.5")5)Advantage:UV resistant,Fire Retardant,Impact Resistant,High Strength,Non-Magnetic,Non-Conductive,Non-sparking,Light weight,Easy to ...