ANSI b16.5 150 LBS screwed flange 1) material :stainless steel 2) standard : ... , CLASS 600, CLASS 900, CLASS 1500, CLASS 2500European SeriesPN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40 ... 100, PN 160, PN 250, PN 320, PN 400StandardHG20592, ASME16.5-2009, DIN2633, ANSI, JIS, etcMaterialA234-WPB.A420-WPL6.A234-WP12 ... /300/600/900 stainless steel forged screwed flange ANSI b16.5 150 lbs screwed flange