... sizes through the replace punching moulds to complete. Forming machine is combined and adjustable, one set of combined rollers ... :1-2.5mm 5 , Material : Mild steel ,galvanized steel coil 6, The production line divide into two operations: automatic &handle ... , servo feeding, JF21-200B punching, punching dies, guider, forming machine, cut-to-length device, collection table and electrical control.etc