Japan Metal Building Systems Pvt. Ltd. Offers Sleek Structure Parking Bays. Japan Metal Building Systems Pvt. Ltd. Supplies roofing systems, decking sheets, cladding sheets and metal building systems. Sleek Structure Parking Bays is a specially designed structures for two wheeler and four wheeler parking bays. Sleek Structure Parking Bays is available in various configurations to match the landscape and the buildings. These parking bays are available with single member columns and trusses. Under slung / suspended roofing is a specialty that conceals the structural steel frame work, with the sheet functioning as a roof sheet as well as a false ceiling.