... Steel,Carbon Steel ,Alloy Steel 2.Size :1/8''-64'' 3.Standard:ANSI.DIN,JIS Carbon Steel Flange1 ... Steel, Carbon Steel, Alloy Steel 2.Size: From1/8" to 64" 3.Standard: ANSI,DIN,JIS,BS,KS4 ... , 2576, 2632,2633, 2543, 2544, etcplate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150041/2 ... , PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900,150051/ ...