Steel Flange 1.Standard:DIN ANSI ASME JIS,etc 2.Size:1/2"(DN15) to 48 ... PN25, PN40 and PN64JIS 5K, 10K, 16K and 20KStandardDIN, ANSI/ASME B16.5, GOST, EN1092-1, HG, UNI, JIS, NFE, GB, BSTypeSlip-On, ... to oil field and refinery as Steel Pipes, Pipe Fittings, Flange, Valves, Gasket, Petroleum Machinery, Fasteners, UV sterilizer, and ... with us, and create a bright future together. ASME B16.5 Steel Flange