... 316L, TP316L, 316Ti, 317, 317L, 321 etc. 2. Technical standards: 1)ASTM A312/A312M ASTM A213/A213M ASTM A269/A269M, 2 ... T21833-2008,GB5310-2008,GB9948-2006, etc.Material /Grade201/304/L/H, 316/L, 321, 309S, 310S, 904L, etc.TypeSeamless Austenitic Stainless steel pipeProcessing ... alibaba.com/aboutus.html 2013 New inox 321 Best ASTM stainless steel pipe price per kg / pcs for construction for decoration