astm a269 tp304 seamless stainless steel tube Tolerance: OD: +- 0.2mm, WT: +-0.05mm, Length: +-5mm Stainless Steel Tubes/Pipes (304H 304N 304LN) 1 ... , 317LN, 310, 317, 314, 304TI, 321TI, 317J1, 316J1 and so on. 6. Finish: Hairline satin, #80, #18, #240, # 320, # 400, ... Individually in plastic bag, weave bundle outter packing or depend on cutomers request. 8. Certificate: ISO9000/9001/9004/19011: 2000, ...