name: pipe material: carbon steel A234 WPB ANSI B16.9 standard: ASTM, ASME, GB, ... Seamless :1/2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L,A105, ... ,DIN,GB,etc10CertificateISO9001 ISO14001 CE11SurfaceBlack painted, Galvanized,3PE12Placeof OrignCangzhou, Hebei,China13payment termsT/T L/C at sight14Application 1. Low and ...