Blind Flange: 3/8"～100" DN10～DN2500American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400American Series:Flat Face (FF), Raised Face (RF), Groove (G), Female(F), Ring Joints Face(RJ) HEBEI CAGNRUN PIPELINE EQUIPMENT CO.,LTD,is an ISO9001:2000 approved manufacturer of blind flange .We are located in Cangzhou City, Hebei Province, where we have access to complete infrastructure facilities. The logistic is quite low here.