7016 Paving blocks, slabs, bricks, squares, tiles and other articles of pressed or moulded glass, whether or not wired, for building or construction purposes (excl. laminated safety glass and multiple-walled insulating units of glass); glass cubes and glass smallwares, whether or not on a backing, for mosaics or similar; leaded lights and similar; multicellular or foam glass in blocks, panels, plates, shells or like, n.e.s