WN Flange (Welding Neck Flange)
Definition: Take the neck and a round pipe and tube butt weld ends with the transition of the flange connection.
Standard: HG/T 20592-2009 HG/T 20615-2009 GB/T9115.1-2000 GB/T9115.2-2000GB/T9115.3-2000 GB/T9115.4-2000 JB/T86.2-94 CB/T47-1999
Material: Carbon steel, Stainless Steel Alloy Steel, Forged Steel
Advantage: Not changeful form damages; Reliably sealing; Widely used; Cheaper Price
Usage: Used in transport inflammable and explosive medium price expensive price