Since 1984 Knapen Trailers oh been making sliding floor trailers to order without any technical risks. All Knapen's trailers are robotically welded on solar energy. In terms of quality, design and primeur we lead the way in the moving-floor sector. Knapen Trailers is bout of the Krone Group. ISO 9001:2008 https://cristiandsdmw.mysticwiki.com/2143570/top_directives_de_chassis_isolant