Flat welding flange with neck

Material: stainless steel
Connection mode: Welding
Diameter: 15
Product specification: 304 American standard flat welding flange with neck, DN 5304, dn20304, dn25304, dn32304, dn40304, dn50304, dn50304, dn65304, dn80304, dn20304, dn25304, dn32304, dn40304, dn50304, dn50304, dn65304, dn80304, dn20304, dn25304, dn32304, dn32304, dn40304, dn50304, dn65304, dn80304, dn20304, dn25304, dn32304, dn40304, DN25, dn32304, dn32304, dn40304, dn20304, dn32304, dn40304, DN, 304 American standard flat welding flange with neck DN 150 304 American standard flat welding flange with neck DN200