... Grade: 201, 202, 304, 304L, 316 and 316L Stainless Steel Tube Δ Grade: 201, 202, 304, 304L, 316 and 316L etc; Δ Standard: ASTM A554 Δ Surface ... Finish: Unpolished: Mill Finish Polished: 180G, 240G, 400G and 600G Finish Δ Outside Diameter: Round tube: 6.0 mm ~ 127 ... 50.0mm Δ Wall Thickness: 0.3 mm ~ 3.0 mm STAINLESS STEEL DECORATIVE TUBE & PIPE