... Forged PipesSize Seamless Pipes 1/2"-20" Welded Pipes 1/2"-20".Length1M, 2M, 3M, 6M, Max< 13M.Process Method Cold Drawn,Cold Pilgered.Pressure ... 316L DUAL GRADE,317L,321,321H,347 etc.Surface Annealed,Cold Pilgered,Pickled,Mirror Polished grade 320,600 etc.Packing ... cases,or under the client's request.Applications Industries forged pipes for the Pulp and Paper, Water Treatment, Sewage Treatment, ...