Carbon Steel Pipe Flange 1.Size:1/2" to 64" 2.Pressure:Class150 to ... .4), Standard: ANSI, DIN, GOST, BS, JIS and customers' drawings for special use5), Types: WN, SO, BL, Plate, Thread, Socket and ... 150, 300, 600, 900, 1500 and 2500 Pressure Ratings: PN 6, PN 10, PN16, PN25, PN40 and PN64 Pressure Ratings: JIS 5K ...