... size: 1/2"-80" material: steel Certification:ISO9001:2000,ISO14001,CE0036 Guarantee: 18months CE0036 ISO9001 steel welded neck flange1.specificationStandards: ANSI(ASME), AWWA ... /1.0460 9 BS4504 SEC.3.1/1989 STANDARD NS15-2000 PN2.5,6,10,16,25,40 CODE101,102,104 ... .4401 1.4404 1.4541 1.4571/DIN174402.picture CE0036 ISO9001 steel welded neck flange