... fabricated applications.Size1/2"-48" DN15--DN3000MaterialCarbon steel, stainless steel and alloy steel( A105,,F316, F304, F316L, F304L, F5, ... PN 400Flange Face TypesRaised Face(RF),Flat Face (FF),Ring-Type Joint (RTJ),Ring Type Joint gaskets,Tongue-and-Groove (T&G),Male-and-Female ... ,CangZhou City,Hebei Province,China Factory Certificate Test Equipment Production Equipment S316/SS316L Slip on Flange