FRP composite grating is one kind of new composite material, made of different resins reinforced with fiberglass, by molded technology.It is widely used in operation platform, checking and repairing walkway, drilling platform, terrace, stair step, equipment walkway, trench cover, pedestrian overpass, filler support, deck of ship,falsework, ventilation fence, rail, corrosion resistance shelf,etc. The composite manhole cover and gratings mainly used in chemical industry,paper industry,power plant,sewage treatment plant,food processing factory,metallurgical refinery,Mine,saltfiled,nuclear power plant,accumulator plant and so on,also used in pavement,bridge plate,industrial floor,operation platform,trench cover,pallet,shelf,isolation belt,green walkway,floor step etc.   Characteristics    Light weight and high strength: The density is about 1.8, a quarter of steel ,two-thirds of aluminum. Specific strength is superior to ordinary carbon steel . Anti-creeping. Impact endurance    Corrosion Resistance:No rust,Resistance to acid, alkali, organic dissolvent and other gas and liquid mixture.It has predominant advantages in anti- corrosion field.    Anti-aging: More than 20 years effective service life under normal outdoor working condition.     Safty: Flame-retardance. Oxygen index more than 32. Good performance of electric insulation. 10KV no voltage breakdown.No electro-magnetic behavior. No electric spark,Effective anti-slipping.    Excellent comprehensive economic benefits: Low cost in installment, little cost in maintenance. Overall economic benefits is 3 or 4 times better than carbon steel.    Comfortable:Moderate flexibility reduce the workers' pressure on legs and waist.    Attractive appearance &easy care: Alternative bright colors. Non-fading. Easy clean and self-cleaning appearance.