... o m Pipe tube: seamless welded pipe tube Flange: WN welding neck flange, BL blind flange, SO slip on flange, SW ... , PL plate flange, TH threaded flange, LWN long welding neck flange, compact flange, orifice flange, reducing flange, spectacle blind, ... 925,incoloy 6mo,incoloy 25-6mo,nickel 200,nickel 201,alloy 20,alloy 31,alloy 255,al-6xn,alloy 6xn, alloy 901,hastelloy b,hastelloy b2,hastelloy ...