Three-section top made from 1.22mm (18 SWG) sheets. Uniformly perforated, suitably fitted to the top. The main frame made from 25mm X 50mm x 1.22mm (18 SWG) M.S. rectangular tubes, which it makes rigid Hospital Furniture. MS Material Pre-treated in seven tanks chemical process & epoxy powder coated, which it makes uncorrosive Reletive Bed.