1.Brand; Dong Shou 2.Material: carbon steel 3.Standard: ASTM A 16.5, ASTM A16.47,ISO,DIN,GB,BS NAME DIN carbon steel Flangestypeplate,slip-on,welding neck,threaded,socket weld,blind Size 1/2"-72"MaterialCarbon Steel, Stainless Steel, Alloy SteelTypes of faceRF, FF, RJ, Tongue&Groove Facing, etc.CertificateAPI, ASME, and ISO9001: 2000Applicationspetroleum, gas, chemical, metallurgy, electric ...