DIN Flanges Hebei Zhuorun Oil and Gas Pipeline Co., Ltd. Base Info Model NO.:DINStandard:DINType:Welding FlangeMaterial:Carbon SteelManufacturing Way:ForgingTrademark:JINGUANSpecification:1,2"-64"Origin:Cangzhou, China(Mainland) Description Pre:Clamp Elbow Next:Type C-S Clip Drive No-Hub Coupling