ss seamless pipe/tube ISO9001:2000 ASTM/AISI standard Grade TP 202,304,316L,321,310S,etc Cold drawn,fully annealed ss seamless pipe/tube 1) Executed standard: ASTM/ASME A213, A312, A269 etc;2) Material: TP301, TP304, TP304L, TP316L, TP310S, TP 321, TP347, TP201, TP202, etc; 3) Arts and crafts: cold-drawn or cold-rolled;4) Surface finish: anneal, pickling, manual polish and mechanical polish 5) ...