... Grid 1.Anti-corrosion,anti-ageing 2.Light weight,high strength 3.Well insulated,low maintenance 4.25mm,mould grating Light Weight FRP Mould Grid The FRP ... so on. The weight of grid itself is very light,its specific gravity is 1/4 as to aciera,and 2/3 to Aluminium ... Corrosion-resistant and of good performance, resist to wear out.2. Light weight,high strength, bludgon to resist.3. Longevity of service, ...