... Material: AISI304 / AISI316L,2). Thickness :1mm-2.6mm,3). Round tube Outer diameter :10mm , 12mm , 14mm , 16mm ,38.1mm , 42.4mm ... ×40mmRound flute tube Outer diameter : 42.4mm/48.3mm/60.3mmRectangular flute tube Outer diameter: 60*40*24*24mmEllipse flute tube Outer Size: 80 ... PVD),G400# satin finish or G600# mirror finish6). Tolerance: Outer diameter:±0.15 Thickness : ±10% of wall thickness Length: ±4 ...