A.Craft flow: Uncolier-----Leveler------Step punching------Forming Machine------Straighten device-----Tracking cutting device------Material collecting------Control system------Forming die B.Main parameter: Uncoiler:5T total power:74.5KW 220v 50Hz Material of forming die:GCR15 Quenching rigidity:HRC58-62 Step of main machine:25 roller diameter:80 PLC control system