DIN EN 12561-4:2011-10 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products; German version EN 12561-4:2011
2011DIN EN 12561-4:2011-10 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products; German version EN 12561-4:2011
2011DIN EN 12561-4:2011 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products; German version EN 12561-4:2011
2003DIN EN 12561-4:2003 Railway applications - Tank wagons - Part 4: Top devices for top emptying and filling of liquid products; German version EN 12561-4:2002