... Unfoldable both available 2. CE.FDA certificates approved. wheelchair ramp, wheel chair ramp Features: Foldable and Unfoldable both available3",4" availableCE, FDA ... .0/9.0 KGNW/GW for 4".................................11/12 KG20ft container..................................900 pcs/3", 653 pcs/4"40ft HQ.............................................1836 pcs ...