Standard:ISO,DN,SMS Certificate:ISO9001 Stainless steel blind Flange,Flange, sanitary flange, stianless steel flange Detailed Product DescriptionFeatures: 1) Size: 1/2" to ... neck, socket welding, blind,and other non-standard as perclient's drawings.Stainless steel Flange,Flange, sanitary flange, pipe fitting, sanitary pipe fitting ...