... , high or low temperature conditions.Size3/8"~160" DN10~DN4000PressureAmerican Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS ... rust-proof black oil or hot galvanizedFlange Facing TypesAmerican 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), Type ...