... durable 2. never rusty, non-electrical conductive pultruded fiberglass grids for platform, trench cover, etc Weighing up to 80% less than ... , platform, trench cover, tray, guard rail, fence, shelf, isolation belt, green corridors, stepping and so on the floor. Fiberglass grids Advantages ... FRP fence, etc. Yalong factory plan viewGoods packing: pultruded fiberglass grids for platform, trench cover, etc