Product Description: 1). Type: WN Flange, SO Flange, RTJ Flange, BL Flange, LJ Flange, SW Flange, Thread Flange 2). Diameter range: 1/2' ~24' (DN15~600) 3). Pressure class: 150 - 1, 500Lbs 4). Standard: ASME B16.5, ASME B16.36, S07005-I, HG20615~HG20622, BS1560-3.1, NF E29-203, JPI 7S-15, GB9112~9124, SH3406 Material: Carbon steel, stainless steel, Alloy steel, Low-temperature steel.