1). Material:200 201 304 304l tp304 306 316l tp316 321 310s 317 and so on 2). Standard:gb/t14975-2002. Gb/t14976-2002. Jis3446. Jis3448. Jis3459. Astma269. Astma312. Astma511. Astma213/a213m. Astma312/312m. Jis g3463.Din2462. 3). Specification.(6-580)*(1-30)*(4000-12000)mm. The specifications can be designed and satisfied for customer's special requirement 4). Application: transport oil, natural gas, water and some liquid material 5). Surface finish: anneal/picking/manual polish/mechanical polish 6). Packing: as per customer's requirement. 7) packing: as per customer's requirement.