... rusty, non-electrical conductive pultruded fiberglass grids for platform, trench cover, etc Weighing up to 80% less than steel and concrete ... . Available as: pedestrian walk, bridge plate, industrial floor, platform, trench cover, tray, guard rail, fence, shelf, isolation belt, green corridors, stepping ... factory plan viewGoods packing: pultruded fiberglass grids for platform, trench cover, etc