... -48 inch, DN15-1200 Standard: ANSI, JIS, DIN, UNI, BS carbon steel flanges1), Sizes: 1/2 inch-48 inch, DN15- DN12002 ... ), Material: carbon steel, stainless steel3), Standard: ANSI, JIS, DIN, BS4504, SABS1123, EN1092 ... you to visit our factory, and establish long term cooperation. Carbon Steel Flanges/pipe fitting