1. Standard: ASTM A554, ASTM A312 2. Outside diameter: 20/10mm~150/100mm 3. Wall thickness: 0.25mm~4mm 4. Length: 6M, or according to customers'requests 5. Material: 201, 202, 304, 316, 316L, 304L, 430, 409 6. Tolenrance: A: Out diameter: 20/10mm-38/25mm-≤ 0.15mm, 50/25mm-75/45mm-≤ 0.20mm, 95/45mm~150/100mm-≤ 0.30mm b: Thickness: 0.25mm~1.0mm-± 0.02mm, 1.0mm~4.0mm-± 0.03mm 7. Polishing: 400#, 320#, 180#, 150#, 240#, 80#and hair line 8. Packing: Each in a plastic bag or as customers'requirements