As a professional manufacturer, we can offer all kinds of the metal pipe fittings and can manufacture according to any drawing 1). Type: WN Flange, SO Flange, RTJ Flange, BL Flange, LJ Flange, SW Flange, Thread Flange2). Diameter range: 1/2'' ~24'' (DN15~600)3). Pressure class: 150 - 1, 500Lbs4). Standard: ASME B16.5, ASME B16.36, S07005-I, HG20615~HG20622, BS1560-3.1, NF E29- 203, JPI 7S-15, ...