ceiling Channel producing machine: 1,high quality,and automautic 2,easy operation 3,low ... diameter Phi 40mm. 2). Roller material:GCR15 bearing steel quenching processing HRC58-60°3).Number of forming steps:10steps 4). Main ... : 380v 50hz 3phase The whole set of machine consists of : Manual decoiler 1 station ;forming machine,hydraulic system 1 set ,table 1set ...