top light with strength FRP panel light weight,stiffness strength energy absorption anti-corrosion, fungi,rot,chemical FRP as skin panel on both sides, PP honeycomb as core. ... from high pressure and heating. The features of our FRP panel are light weight, high stiffness, sound damping, fire-retardnat,quakeproof, ... provide protection for tanks, pits, pipes and grates. top light with strength FRP panel