<![CDATA[EC21 Product Catalogs - 20mnv6 hollow bar]]> <![CDATA[EN 10294-1 Grade 20MnV6 Hollow Bar]]> <![CDATA[Hydraulic Cylinder Barrels of Material ST52/ST52.3, ID Tolerance H8-H9, ID 1.25 Inch To 24 Inch]]>