... :25 Cold Bending High Speed Guardrail Forming MachineThe guardraill forming machine is mainly composed of uncoiler,checking level machine, punching machine, the main machine, the formation ... 2 checking level: there are seven rollers working on it, three on the top and four on the bottom. The diameter ... 15 KW, pressure 20 Mpa 2.0 the main machine adopts the speed governing 5-12m/min 2.1 the computer use ...