... E29-200-1-2007ISO7005-1-1992AS2129-2000JIS B2220-2004Pressure ReatingAmerican Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900 ... ,metallurgy,construction /water supply and sewage workFlange Facing Types American Series: Flat Face(FF), Raised Face(RF), Tongue(T), Groove(G ... ),Female(F), Male(M), Ring Joints Face(RJ)European Series: Type A(Flat Face), Type B(RaisedFace), Type C(Tongue ...