... " Material: A105 A304 A304L DIN JIS ANSI stainless steel forged W/N flange1). Type: WN Flange, SO Flange, RTJ Flange, BL ... , 500Lbs 4). Standard: ASME B16.5, ASME B16.36, S07005-I, HG20615~HG20622, BS1560-3.1, NF E29-203, JPI 7S ... in, pls don't hesitate to contact1 stainless steel forged W/N flange