| 摘要 |
A method of forming a corrugated panel from sheet metal, the corrugated panel having a plurality of alternating, concave and convex ribs, the method including the steps of forming an interim profile in the sheet metal, the interim profile including alternating, concave and convex interim ribs, each of the interim ribs having alternating, concave and convex rib segments; and flattening each rib segment of each interim rib so that the interim ribs become smoothly curved to form ribs of the corrugated panel. |
