... ,XS,XXS 4.Standard: ASTM A234 WPB/WPC 5.Quality:good ProductCarbon Seamless Pipe Size1/2"-72"Wall ThicknessSCH5S-SCH160 ... A234 WP11,WP12,WP22,WP1,WP5,WP9Application rangepetroleum,chemical industry,medical,papermaking,etcSurface Treatmentpolishing treatment ,rust-proof black oilQualityHigh leverCE, ... can supply IBR fittings and Specialized NAME&HIC Fittings High Quality Q235 Straight Seam Steel Pipe