A Perforated tarpaulin Tarpaulins also are useful for ad printing, most notably for billboards. Perforated tarpaulins are generally used for medium to huge promoting, or for protection on scaffoldings; the aim on the perforations (from 20% to 70%) is to lower wind vulnerability. Thanked 0 Times in 0 Posts Pergola https://spencertsplf.wikifrontier.com/8049333/fascination_about_izmir_pergola