1.Plate flange 2.Material:Stainless steel 3.Standard:Ansi,Din, Jis and so on. 4.Preesure: PN6-PN400 5.Size:DN10- ... DN4000 Material: carbon steel and stainless steelType: plate, welding neck, slip on, blind, thread, socket, lap joint ... and special typeStandard: DIN, ANSI, EN1092-1, JIS,BS4504Size: 1/2 ...