length per 5 m  strain of former equipment vehicle hazardous goods of the fire brigade  Acid couplings DN 50 one side cone socket with groove nut, other side threaded socket With sleeves made of stainless steel & nbsp; Wing nut as grounding connection Coating made of V2A wired mesh   The hoses were stored as a reserve and have not been tested in recent years. Good condition. They come from the fire brigade and were removed from service in December 2021.