Steel Tube manufacture standard: JIS, GB,DIN,ASTM,EN,AISI welded tubes 201/202/304/430/409L/316L Steel TubeManufacture Standard:JIS, GB, DIN ... , ASTM, EN, AISIwelded tubes,Thickness:1.2mmLength:6mOutside path:60mmFinish: 2B (Mill Finish), bright ...