| http://www.w3.org/ns/prov#value | - A pair of vertical support posts 30, 31, 32, 33 is provided at each end of the frame 4 and each post 30, 31, 32, 33 extends between and is joined by welding or other suitable means to an end rail 13, 14 and to the horizontal end brace 28, 29 adjacent thereto.
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