In Jan-Apr 2004 the Podolsk branch of Arkhbum produced 40.3mln sq m of double-wall corrugated board recalculated for single-wall corrugated board, up 1% y-o-y, the company's press-service said. In Apr 2004 the Podolsk branch of Arkhbum produced 11.8mln sq m of corrugated board, up 1%.