... anti-corrosion, fungi,rot,chemical fire-retardant FRP as skin panel on both sides, PP honeycomb as core. They are composited ... high pressure and heating. The features of our truck wall panel are light weight, high stiffness, sound damping, fire-retardnat,quakeproof ... 7mm to above. Commonly in practice composite panel thickness from 15mm to 40mm. Sandwich panel is widely applied in Marine as structural ...