This equipment is primarily used in the repair of dented and warped guardrails. Repair is achieved by utilizing 7 rollers (9 rollers is available if you need) for rolling correction, multi-rolling straightening and auxiliary devices to repair damaged guardrails (not including inner strain and tears), to gradually eliminate dents, warping and other types of deformation making guardrails available for recycling and reuse. This guardrail repair straightening product is second generation and is presently the ideal highway maintenance device and the ideal device for use by machinery manufacturers given its stable performance, convenient control and it's bright economic prospects.