... forged, pickled,full composition qualified machanical property,etc. stainless steel channel bar,hot forged, pickled,full composition qualified machanical property,etc ... .,stainless steel channel bar1.material grade:AISI 201,Y201Cu,202 AISI 303, ... 431,4162.standard: GB/T 1220-2007,GB/T707-1988,ASTM A 276,A 314, A479, A484,A564,A582 etc3. ...