... JISB1503/B2220, DIN 2573 3.ISO9001, SGS, BV 5K Weld Neck flange 1. Specification Type5K Weld Neck flangePipe ... ,300#, 600#, 900#,1500#, 2500#, PN16, PN25, PN40, 5K,10K, 6bar, 16bar, 25barStandardANSI B 16.5, ANSI B16.45 ... , ASTM,,JIS , DIN , EN,MaterialQ235, 20#, Q345A105, ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52 ... 2.Product3.Production4.Marking5.Packing & Transportation6. Company 5K Weld Neck flange