... .36, MSS SP44, API6A, BS 4504, EN1092,UNI 2277/2278, DIN 4504Material 310S,310,309,309S,316,316L,316Ti,317,317L ... ,304,304L,302,301,201,202,405,410,420,430,904L,Duplex,etcTypePlate Flange, Flat Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck Flange ...