| http://www.w3.org/ns/prov#value | - The plank members each preferably comprise a plastics extrusion of uniform cross-section throughout the length of each plank member, and this may comprise a hollow rectangular section, subdivided by partitions or dividing walls into for example longitudinally extending compartments which form the hollows or voids which are open at each end of the plank member to receive projections of one or more
|
