... "-48" Material:carbon steel,stainless steel,alloy steel Flange 1). Type: WN Flange, SO Flange, RTJ Flange, BL Flange, LJ ... 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 ...