ASTM A234-WPB Galvanized flange,ASME B16.5 SIZE: 1/2" - 48" DIMENSIONS: ASME B16.9/B16.28 PN:>=0.6MPa ASTM A234-WPB Galvanized flange,ASME B16.5SIZE: 1/2" - 48" DIMENSIONS: ASME B16.9/B16.28 PN:>=0.6MPa Material:carbon steel/alloy steel for high temperature,stainless steel etc, ASTM A234-WPB Galvanized flange ASME B16.5,API,PED,ISO certificate,DIN,JIS,GB Standard