Technique: cold drawn/cold rolling Materials:tp304, tp304l, tp316, tp316l, tp310s, tp314, tp317l, tp321, tp347, tp410, tp420, tp430, s31803, s32304, s32750 etc. Standards: astm a312, a213, a269, a511, a790, a789, din 17456, din17458, en 10216-2004, jis g3459, gb/t14975, gb13296, gb5310, gb9948 Surface treatment: polishing, sand blasting, annealing and acid pickling 1.With plastic cap to protect both ends 2.Plastic bag wrapped outside the pipe 3.Then woven bag wrapped outside the pipe 4.If require , then pack into wooden