asme carbon steel flange 1.size:1/2"~60" 2.standard:ASME,DIN,ANSI,JIS,GB 3.material:Carbon steel,A105,Q235B, ... Q345B, asme carbon steel flange Typesplete, slip-on flange, welding neck flange ... as customer's requirment PortTianjin seaport,China.Special design available asme carbon steel flange