Welding Neck Flange

We are offering welding neck flange.
Specification: 1/2��240��10-6000�
pressure rating: 0.6mpa �32mpa�150lb �2500lb�pn0.25-pn42.0
material: 304�304l�321�316�316l�310s,etc.
General standard:
ansi: ansi b16.5 class150�300�600�900�1500�wn�so�bl�th�lj�sw�
jis :5k�10k�16k�20k�pl�so�bl�wn�th�sw�
din:2573�2572�2631�2576�2632�2633�2543�2634�2545�pl�so�wn�bl�th�
ministry of chemical industry standard: hg5010-52�hg5028-58�hgj44-91�hgj65-91�hg20592-2009(pn series)\hg20615-2009�calss series�
machinery standard: jb81-59�jb86-59�jb/t79-94�jb/t86-94�jb/t74-1994
pressure vessel standard: jb1157-82�jb1160-82�jb4700-2000�jb4707-2000
applied range: boiler pressure vessel, petroleum, chemical industry, shipbuilding, pharmacy, machinery and other industry.