carbon steel forged flange 1.size:DN15-DN2000 2.material:cs&ss 3. ... 10k,16k,20k,30k,150# to 2500#,PN6-PN40carbon steel forged flange 1.Size:DN15 to DN2000,1/2" to 78"2 ... .Material:carbon steel,stainless steel3.Standard:ANSI,DIN,JIS,BS,UNI,EN1092-1,SABS1123,AS2129,GOST-128204.Types: ... house self check or Third Party inspection11.Carbon Steel:A105,SS400,SF440,RST37.2,S235,C22.812.Stainless Steel:F304, ...