din flange Material:carbon steel,stainless steel size:1/2"-24" Standard:ANSI,DIN,EN1092-1 Process:free forging,plate din flange Material:carbon steel,stainless steel ... size:1/2"-24" Standard:ANSI,DIN,EN1092-1 Process:free forging ... of the client13We are approved by ISO 9001:2000authentication DIN flange/carbon steel flange