... .Standard:GB14976-2002, GB13296-2007, JIS, AISI, DIN, BS3.Size:DN10-20004.Pressure:ASTM B16.5: 150LBS, 300LBS,400LBS, 600LBS, 900LBS, 1500LBS, 2500LBSDIN ... Class 150, 300, 600, 900, 1500 and 2500 DIN PN 6, PN 10, PN16, PN25, PN40 and PN64 JIS 5K, 10K, 16K ... , petrochemical, medical equipment, piping installation link Stainless Steel Welding Neck Flange-Pipe connecting parts