... .Material: carbon steel, stainless steel 3.Standard: ANSI, JIS, DIN, UNI, Carbon steel flanges weld neckANSI B16.5 FlangesWe are Factory ... steel, stainless steel4.Standard: ANSI,JIS,DIN,BS4504,SABS1123,EN1092,UNI,GOST12820-805.Types: plate, slip on, welding neck, blind, thread ...