1)size:1/2"to72" 2)standard:ASME B16.5 3)material:a182 f316 4)WT:#150-#2500 5 ... )face:RF ASME B16.5 a182 f316 steel socket RF flange size1/2" to ... 24" ASME B16.526"to 80" ASME B16.47TypeWNF, SO, SWF, BL, OF,LF,PLFaceRF, ... ,PN25,PN40/ Class A, B, C, D, EstandardASME B16.5, ASME B16.47,ASME B16.36,DIN 86341-2000, DIN2505materialCarbon steel(ASTM A105 ...