... EN10305 GB/T8163-1999 Material10#,20#,45#,16Mn,Q345,St37,St52,St45,ST35.8,ST35 etc.TechniqueCold Drawn,Cold rolledThickness1-14mm ... or seaworthy,or according to customers' requirements.UsageWidely used in Mechanical and Production Engineering Technology,Ship building,etc.Personal informationName:CandyDelivery ... interested in our products,pls contact me! Cold Drawn Precision Seamless Steel Pipe