... Vibration Dampening ~Water, moisture, corrosion, rot, chemical resistant Dry freight box body.Floor panel: 3mm/4mm/5mm steel checker plateOhter panels ... : FRP honeycomb panelsDoor frame: Steel RHS 2.0mm hollow rectangleDoor accessories: Galvanized SteelFor more details, please write us. FRP ... , moisture, corrosion, rot, chemical resistant.~Environmental protection. Dry freight box body