Weld Neck Flange
Product name:Neck butt welding flange
Technology:Forging
Size: DN10-DN800
Standard:ASME,DIN,EN-1092,JIS,BS,GHOST,GB,HG/T20592
Materials:317/L、304/L、316/L 、310/S 、309/S、347/H 、321/321H、904/L 、S32750/F53/SAF2507、 S32205/F60 S31803/F51、S32760/F55