... lj,ff flanges,etc. 3.Fast Delivery 4.comp flat face blind flange With high tensile strength, these JIS ... PN 160, PN 250, PN 320, PN 400Flange Facing Types:Flat Face (FF), Raised face (RF), groove (G), female(F ... gas, metallurgy etc.Major Products:Elbows, tees, reducers, pipe caps, flanges, seamless steel pipes, ERW, LSAW, and etc...We ... enquiries.Wish us a good co-operation. flat face blind flange