Stainless steel welded tubes include ASTM A554, ASTM A269, ASTM A249, ASTM A270.Steel grade: 200 series, 300 series, 400 series. Detailed product description ... , oval, channel U, etc. 2. Finish: 180#, 320#, hairline, satin, mirror, etc. 3. OD: 6mm to 273mm for round tube; 8mm ... a soft poly bag into bundle with knitted bag or steel crate, or wooden case. 8. Application: Decoration, furniture, railing ...