... : OD: 6-10mm, ID: 1.0-4.0mm.3) steel grade: 20A, 20, st35, st45 10#,20#,45#,16Mn, ... ,ST52.4,4) ASTM,DIN,EN,JIS Descriptionseamless steel pipes,seamless steel pipes,cold-drawn or cold-rolled precision seamless phosphated hydraulic ... pipes,Process Methodcold drawn and cold rolledCarbon Precision Steel pipeSpecificationOD: 6- ...