... )material:a182 f316 4)WT:#150-#2500 5)face:RF ASME B16.5 a182 f316 steel socket RF flange size1/2" to ... ,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, EstandardASME B16.5, ASME B16.47,ASME B16.36,DIN 86341-2000 ... ,shipbuilding, papermaking, construction, etcequipmentnumerically controlled lathetestingultrasonic fault detector ASME B16.5 a182 f316 steel socket RF flange