... o m Pipe tube: seamless welded pipe tube Flange: WN welding neck flange, BL blind flange, SO slip on flange, ... , PL plate flange, TH threaded flange, LWN long welding neck flange, compact flange, orifice flange, reducing flange, spectacle blind ... 400,monel k500,monel k-500,inconel 600,inconel 625,inconel 601,inconel 718,inconel x-750,inconel x750, inconel 690,inconel 783,incoloy 800,incoloy 800h, ...