FRP panel: light weight with stiffness strength sound dampen ... expert manufacturer,main products are PP honeycomb,PC honeycomb, FRP panel,non-woven roving fiberglass PP honeycomb composite board ... thicker tissue. Light weight, high compressive strength, anti-water, anti-humidity honeycomb can be used as a core ... Magnetics penetration,anti-chemical corrosion,anti-fire, anti-water, cleanness and others.