Carbon Steel piepe fitting Carbon steel reducing pipe fittings Size: 1/2"to 48" 100000tons/year Production:Steel pipeType:Seamless and ERWSize:1/2" To 24"Wall thickness:Sch5S-Sch160, XS,XXSStandards:ANSI, ASTM,API,DIN, JIS, BS, ISO, GB, SH, AND HG etc MaterialCarbon Steel: ASTM A53/A106,ASTM A179,API 5L X42/52/60Surface treatment:Black painting, anti-rust varnish, anti-rust oil, hot galvanized, ...