Nanjing Spare FRP pultruded grating is a high-performance lightweight structural material made of high-strength glass fiber and corrosion-resistant resin through continuous pultrusion integral molding. Compared with traditional metal gratings, it features light weight, high strength, corrosion resistance, anti-slip, insulation, flame retardancy and zero maintenance. The product has excellent environmental adaptability and structural stability, which can effectively solve the problems of rusting, aging, deformation and frequent maintenance of steel and aluminum gratings in harsh working environments. To meet the diversified load-bearing, environmental and engineering scenario requirements, we divide our FRP pultruded gratings into three categories: Class I General Type, Class II Enhanced Type and Class III Heavy-Duty Type, covering all conventional and high-standard engineering application