1. Standards: GB/T14975-2002 GB/T14976-2002 GB/T13296-2007 GB9948-2006 GB5310-95 ASTMA213/A213-99, ASTM312/A321M-00b, ASTMA269-00, ASTMA511-96, JISG3463, JIS3446, JIS3448, JIS3459, DIN2462, DIN17458 2. Material: ¡î 200 series: 201, 202 ¡î 300 series: 301, 304, 304L, 309S, 310, 310S, 316, 316L, 316Ti, 317, 317L, 321, 321H, 329, 347 ¡î 400 series: 409, 409L, 410, 430, 431 3. Process: hot-rolled or cold-rolled 4. Specifications: Outside diameter:2¡«820mm Wall thickness:0.5¡«80mm Max length:18000mm 5. Payment: T/T, L/C 6. MOQ: no limited 7. Sample: sample for free, but you should pay mail charges, which will be sent back after you ordered our products