... 1,067mm Thickness:1 - 80mm Brand:Tigersteel Certificate:ISO,API API 5CT carbon seamless steel pipe 1)Standard:GB, DIN ... :10#,20#,ST35,ST37,ST52,16Mn,A53-A369,API J55-API P110,Cr-Mo alloy3)OD:20 - 1, ... Certificates:ISO,API6)Techinique:cold drawn7)MOQ:20tons8)Place of origion:Shandong,China9)Main market: Middle East,Asia ... tube c.Boiler pipes d.Conveyance of electricity API 5CT carbon seamless steel pipe