forged carbon steel SO flange

1.ANSI FLANGESStandard: ANSI B16.5ANSI B16.47MSS SP44ANSI B16.36 ANSI B16.48Types: Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 BlanksPRESSURE GRADE: Class150,Class300,Class600,Class900,Class1500,Class2500SIZE: 1/2" NB TO 48" NB2.DIN FLANGESStandard: DIN2527,DIN2566,DIN2573,DIN2576,DIN2641,DIN2642, DIN2655,DIN2656,DIN2627,DIN2628,DIN2629,DIN2631 DIN2632,DIN2633,DIN2634,DIN2635,DIN2636,DIN2637 DIN2638,DIN2673Types: Welding neck FflangesSlip on FlangesThreaded Flanges Socket Welding Flanges, Blind FlangesPRESSURE GRADE: 6Bar,10Bar,16Bar,25Bar,40Bar SIZE: DN10-DN10003.JIS B2220 FLANGESTypes:Sop type; Soh type; Plate Flanges; Blind FlangesPressure Class5K10K16K20K30KSIZE:10A-1500A4.BS FLANGESStandard: BS 4504 SEC 3.1 : Welding neck Flanges(111/134), Hubbed Slip on Flanges(112) ,Hubbed Threaded Flanges(113),Lapped Pipeend FlangesE(133), Plate Flanges(101),Loose Plate Flanges(102), Loose Plate With Weld-neck Flanges (104),Blank Flanges(105) PRESSURE GRADE: PN2.5 TO PN40Standard: BS 4504(PART-1) PRESSURE GRADE:PN2.5 TO PN40Standard: BS 10 : Welding neck Flanges, Plate Slip-on Flanges, Screwed Boss Flanges, Slip on Boss Flanges, Blind Flanges TYPES: Table: D, E, F, H SIZE: 1/2" NB TO 48"NB5.EN 1092-1:2001 FLANGESSIZE:TYPE1(Plate Flanges); TYPE2(Losse Plate Flanges); TYPE5(Blank Flanges); TYPE11(Weld-neck Flanges); TYPE12(Hubbed Slip-on Flanges For Welding); TYPE13(Hubbed Threaded Flanges)Pressure ClassPN2.5PN6PN10PN16PN25PN40PN63PN100SIZE: 1/2" TO 48"6.UNI FLANGESTYPES: UNI227622772278608360846088608922992280228122822283... (PLSOWNBLTH) FLANGESPressure ClassPN0.25-250MAPSIZE: 1/2" TO 48"7.GOST FLANGESTYPES:Plate Flanges(GOST12820-80); Blind Flanges(GOST12836-67); Wedling neck Flanges(GOST12821-80); Steel Butt-Welded Flanges GOST12821-80Pressure Class:PN=0.6--PN10,0 (100 /2)SIZE: 1/2" TO 48"8.AS2129 AND AS4087 FLANGESTYPES:1.Plate Flanges Table D Blind;2.Plate Flanges Table D Slip on Drilled; 3. Plate Flanges Table E Blind;4.Plate Flanges Table E Slip on Drilled;5.Flanges Tables H Blind;6.Plate Flanges Table H Slip on Drilled; 7.DIN PN16 Plate Flanges;8.Forged Flanges Table D Slip on;9.Forged Flanges Table D Screwed;10.Forged Flanges Table D Screwed GAL;11.Forged Flanges Table E Slip on;12.Forged Flanges Table E Screwed;13.Forged Flanges Table E Screwed GAL;14.Forged Flanges Table H Slip on;15.Forged Flanges Table H ScrewedSIZE: 1/2" TO 48" 3. Type:plate,slip-on,welding neck,threaded,socket weld,blind 4. Surface treatment:transparent/Yellow/Black anti-rust paint,tranparent o