sanitary flange; stainless steel flange;welded neck flange slip on flange; thread flange 1) Size: 1/2" to 4" 2) Material: 304, Features: 1) Size: 1/2" to 24"2) Material: 304,304L,316,316L3) Standard: ANSI, JIS, DIN, BS4) Type: slip-on, welding neck, socket welding, blind,and other non-standard as perclient's drawings.