... :ISO9001:2000,ISO14001,CE0036 Guarantee: 18months CE0036 ISO9001 steel welded neck flange1.specificationStandards: ANSI(ASME), AWWA, DIN, EN1092, GOST, JIS, ... neck, slip on, bind, threaded, lap-joint, socket weldingPressureMaterial: carbon steel, stainless steelSize: 1/2" to 80" DN15 to DN2000sealing surface ... 1.4404 1.4541 1.4571/DIN174402.picture CE0036 ISO9001 steel welded neck flange