... durable 2. never rusty, non-electrical conductive pultruded fiberglass grids for platform, trench cover, etc Weighing up to 80% less ... green corridors, stepping and so on the floor. Fiberglass grids Advantages:Excellent Corrosion ResistanceImpact Resistant65% Lighter than SteelSlip ResistantNon- ... , etc. Yalong factory plan viewGoods packing: pultruded fiberglass grids for platform, trench cover, etc