... 6, 21, 31), Nickel alloys, stainless steel, duplex, etc. Valve Seat Ring Main material of our products: Stellite, Hastelloy, Monel ... )Incoloy 800,alloy 800,( Sheet, Plate, Bar, rods,Pipe , Tube (welded & seamless), Wire, Fittings)Incoloy 800H,alloy 800H ( Sheet, ... , wire,Fittings )Hastelloy B2( Sheet, Plate, Bar, rods,Pipe , Tube (welded & seamless), Wire, Fittings)HastelloyB3( Sheet, Plate, Bar, rods ...