... :1/2"to 72" 2)material:carbon steel,stainless steel,etc 3)standard:ANSI B16.5 4 ... to 80" ASME B16.47TypeWNF, SO, SWF, BL, OF,LF,PLFaceRF, FF, MF, MFM, RJ, TG, ... 36,DIN 86341-2000, DIN2505materialCarbon steel(ASTM A105, Q235,A350LF2,A350LF3,)Stainless steel(ASTM A182 F304, F304L,F316 ... ,F22,F5,F9,F91,F1ECT)qualificationISO9001:2008 Quality Mangement System Certificate,ISO 14001 Environment Mangement System ...