| http://www.w3.org/ns/prov#value | - While any suitable material may be used for this purpose, flexible, resilient, polyurethane foam has been found to be especially suitable, since it will not slide relative to virtually any known material used in seating devices, especially when a load is placed on the upper surface or seating surface or back rest of the seat cushion, such as the weight of a person, or a package, or whatever.
|
