... Socket Weld ect. 3.Standards: ANSI,API 6A ,DIN Flange Type Weld Neck,Slip-On,Blind,Socket Weld ... Flanges . Spec–blind,anchor flange ,swivel flange .3. Standard: ANSI B16.5, B16.47,B16.36, MSS SP- ... Carbon steel, stainless steel and alloy steel. ASTM A105, DIN ST37.2, ASTM A182-F304, F304L, F316, F316L, ... s31803.5.Pressure classes range: ANSI 150LBS-2500LBS, DIN PN6-PN160, JIS 5K-30K, PN0.25-PN25 PN2 ...