... 64'' 3.Standard:ANSI.DIN,JIS Carbon Steel Flange1.Material: Stainless Steel, Carbon Steel, Alloy Steel 2.Size: ... 2631, 2576, 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600, ... ''-64''BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300, ... ,pls feel free to contact us. Carbon Steel Flange (Plate/Slip-On/Welding Neck)