... feature high strength,good toughness,and high reistance to corrosion,high pressure and temperature.The raw materialsof ... flanges according to customers'requirements. TypeFlangeflange is a type of industrial flange designed to transfer stresses to the pipe to reduce high ... Type B(Raised Face), Type C(Tongue), Type D(Groove), Type E(Spigot), Type F(Recess), Type G(O-Ring Spigot), Type H (O-Ring Groove ...