... :SCH5S-160/STD/XS/XXS 3.High quality 4.Favorable price 5.Quick delivery 1.Carbon Steel Weld Neck Flange ANSI B16 ... Tee,Cross,Concentric/Eccentric Reducer,Sockolet,Flange5.Material: Carbon steel, Alloy steel, Stainless steel Carbon SteelASTM:ASTM A234 WPB, WPC; ASTM A420 ... etc.8.Certification: ISO 9001:2008,API,ASME,CE,HSE Carbon Steel Weld Neck Flange ANSI B16.5