... ''-72''Material: Carbon steel/stainless steelStandard: DIN,ANSI,UNI,JISProcess: Forged/castStructure type:Slip on flange,Welding neck flange,Blind flange ... are from all over the world,such as American,Germany,Italy,Spain,Canada,Brazil,Japan,South Africa,and so on.We ... are sincerely welcome your valuable inquiry and questions. forged carbon steel A105 EN welding neck flange