... : ASTMA511, A312, A269. 3.Length6m--12mm OD:6mm-830mm. hot-rolled carbon seamless steel pipe.Description of product:1. (1) Stainless ... 1/2inch to 32inchThickness: sch5 to schxxsSurfaceGalvanized or coatedTechniqueCold drawn, hot rolled, hot expansion, cold rolledTypeRound pipe and square pipeMaterial20#, 45#,Q235, ... or L/C or as our discussion International quality hot-rolled carbon seamless steel pipe