WN - RTJ what is the full name
The Flange is called the Flange or the Flange. The flange is the part that connects the pipe with the pipe and the valve.
There are holes in the flanges, and bolts make two flanges. The flange is sealed with gasket. Flange threaded connection (wire) flange and welding flange and card flange.
WN indicates that there is an RJ ring flange which is used for high pressure
