The advice covers chutes constructed of removable areas made from metal or non-metallic product, affixed to scaffolding. http://[email protected]/php.php?a%5B%5D=%3Ca+href%3Dhttp%3A%2F%2Fvaletinowiki.racing%2Findex.php%3Ftitle%3Dbarbeerogers4979%3EBoss+Scaffold+Tower+For+Sale%3C%copyright%3E%3Cmeta+http-equiv%3Drefresh+content%3D0%3Burl%3Dhttp%3A%2F%2Fqa.laodongzu.com%2F%3Fqa%3Duser%2Fpatchdriver7+%2F%3E