... (200") Material: Stainless steel 304,316,316L,carbon steel 1, Standard: ANSI, DIN, JIS, BS2, Size: DN15(1/2") to DN5000 ... Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Other Flanges High quality stainless steel welding neck flange ANSI B16.5