... Thickness: 0.1mm---3.8mm Items: Round Pipe, Square Pipe, Rectangular Pipe, Embossed Pipe, Threaded Pipe, Oval Pipe, Special-shaped Pipe, FittingFeature:1) Round PipeOuter Diameter: 6mm ... 4) Length: Standard is 6 meter, special length can be customized.5)Tolerance:a) Outer diameter: ±0.2mmb) Thickness: ±0.02mmc ... , Door, Window, Balcony, Fence, Bench, Furniture, etc. Stainless Steel Boiler Exhaust Pipe