1.ANSI,DIN,JIS,KS,EN etc 2.carbon steel p265gh ... Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle Blind, etc. Size 1/2"-48" Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Specification ... Class: 300, 400, 600, 900, 1500, 2500 * ASTM/ANSI B16.48: ( Figure-8 blanks) Pressure Class: 150, 300, 400, 600, 900 ...