... 1.welding neck flange/WN flange/flange 2. 10years professional service 3.Size:1/2"-80aa,TUV,PED,ISO 4.To be ... equality WN flange Pressure: ASTM B16.5:150LBS,300LBS, ... ,10Bar,16Bar,25Bar,40Bar, BS4504,PN2.5-PN440,BS10:Table D,E,F,H, JIS:5K,10K,16K,20K, ... B16.47 MSSSP-44 API605 EN1092 BS3293 ISO 15590-3 : Non standard Flange According to the drawing size/charting from ...