1. Size: (6mm-630mm)*(1mm-45mm) 2. Material: 200 series, 300 series, 400serieS 3. Standard: ASTM, AISI, DIN, JIS, EN, ... 1. Size: (6mm-630mm)*(1mm-45mm)2. Material: 200 series, 300 series, 400series3. Standard: ASTM, AISI, DIN, JIS, EN, GB ... customers' requestTolerancea) Outer Diameter: +/- 0.2mmb) Thickness: +/- 0.02mmc) Length: +/- 5mmSurface180G, 320G, 400G Satin / Hairline400G, 500G, 600G or 800G ...