... #, 20#, Q295, Q345, 45#, ST4 20# Seamless pipe for liquid use :1 Standard: GB/T8163 ,ASTM A53,ASTM A106,API5L,DIN1629 ... , Usually Loaded In 20GP and 40HQ Containers, Large Quantity Can Use Bulk Vessel. In bundles, bulk in container or according to ... , Australia, Africa15 Certificate:ISO9001, API 20# Seamless pipe for liquid use