... 304 stainless steel ball SpecificationsForged steel equal tee CS,SS,AS Manufacturer Std:ASTM/ANSI B16.11 ... B16.9,Materials: CS,SS,AS Size : 1/2''-72'' Cert.: APIForged ... steel equal tee CS,SS,AS Manufacturer Std:ASTM/ANSI B16.11 B16. ... steel(ASTM A234WPB,,A234WPC,A420WPL6. 20#,Q235,10#,20#,A3, Q235A, 20G,16Mn, ect) Alloy steel(ASTM A234 ...