United Poly Engineering [P] Ltd. Manufactures Dressing Trolley for Hospital. United Poly Engineering [P] Ltd. Is an ISO 9001:2000 accredited company. United Poly Engineering [P] Ltd. Supplies stainless steel & plastic hospital hollowware & utensils and hospital furniture. Dressing Trolley for Hospital has been available in the size of 76 [L] X 51[W] X 81[H] cms. Dressing Trolley for Hospital has been finished with pre-treated to prevent rust and epoxy powder coated finish.