FRP gratings 1.Never going rust,long service life 2.Needing no maintenance 3.Easy to cut and install 4.Various ,stable sizes FRP gratings Fiber Reinforce Plastic (FRP) moulded grating is a kind of plate material with a certain aperture ratio,with unsaturated polyester resins(including isophthalic,orthophthalic,ethylene and phenolic aldehyde types etc.) as matrix,fibreglass roving as skeleton. It ...