Starting up production of a new product according standard EN 14800: 2007 Posted on 22.10.2015 by Петър Димитров “АYVAZ N” LTD started manufacturing of corrugated safety metal hose assembly for natural gas DN12 (with fittings nipple-nut and nut-nut),according EN 14800:2007. Fexible metal hose DN12 EN14800 Fleksible matal hose DN12 - EN 14800 nipple-nut