1)large diameter seamless carbon steel pipe fitting 2) ... SS,CS,MS 5)Elbow,tee,reducer,cap Name large diameter seamless carbon steel pipe fitting Type:Tee, straight ... 4-2008DIN2605-1-1992 DIN2605-2-1995JIS B2311-2009 JIS B2312-2009 JIS B2313-2009GB/T12459-2005 GB/T13401-2005 ... DN1200ERWDN15~DN1400SSAWDN200~DN3600LSAW: DN300~DN1400Wall thickness: 1mm~160mm large diameter seamless carbon steel pipe fitting