... . We can provide flange as following: SIZESTANDARDSERIESPRESSURE11/2”—64”ASTM ANSI B16.5, ASA, API-605,etc..slip-on, welding neck, blind, threaded ... DIN2573, 2572, 2631, 2576, 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150041/2 ... ”—64”BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150051/2 ...