... :1/2inch to 32inchThickness: sch5 to schxxsSurfacePolished, annealed, pickledTechniqueCold drawn and cold rolled, hot rolledMaterialTP201,TP304,TP304L,TP316L,TP310S,TP321TypeSeamless and weldedEndPlain ... /2inch to 32inchThickness: sch5 to schxxsSurfaceGalvanized or coatedTechniqueCold drawn, hot rolled, hot expansion, cold rolledTypeRound pipe and square pipeMaterial20#, 45#,Q235,20G ...