The assistance covers chutes created of detachable areas made of steel or non-metallic material, connected to scaffolding. http://[email protected]/suivi_forum/?a%5B%5D=%3Ca+href%3Dhttps%3A%2F%2Fcutt.ly%2Ffw4AwKGB%3Eadvanced+scaffolding%3C%copyright%3E%3Cmeta+http-equiv%3Drefresh+content%3D0%3Burl%3Dhttps%3A%2F%2Fcutt.ly%2FZw4vNi6r+%2F%3E