carbon steel forged flange 1.size:DN15-DN2000 2. ... 20k,30k,150# to 2500#,PN6-PN40 carbon steel forged flangesize:DN15-DN2000material:cs&sspressure:5k,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, ... and have a business disussion. carbon steel forged flange