... size: 1/2"-80" material: steel Certification:ISO9001:2000,ISO14001,CE0036 Guarantee: 18months CE0036 ISO9001 steel welded neck flange1.specificationStandards: ANSI(ASME), ... AWWA C207 4"--144" Class B,D,E,F T/1 PL A105,A181 A36,A516Gr.60,65,70 8 ... .0460 9 BS4504 SEC.3.1/1989 STANDARD NS15-2000 PN2.5,6,10,16,25,40 CODE101,102, ... 1.4404 1.4541 1.4571/DIN174402.picture CE0036 ISO9001 steel welded neck flange