AISI Stainless Steel 201 Pipe: 1.Size: 9.5mm-219mm 2.Thinkness: From 0.5mm to 3mm. 3.material in SS201, SS301, SS304, ... 219mm.2. Thickness: 0.25mm to 2.0mm.3.Length: 3000mm to 6000mm, or option.4.Tolerance: OD: +- 0.2mm, WT: +-0.05mm ... outter packing or depend on cutomers request.8. Certificate: ISO9001-2000, Products quality certificate etc,10: Please confirm the Stainless steel chemical ingredient ...