| 摘要 |
PURPOSE: A rainwater receiving plate and a production method thereof are provided to increase the strength and the corrosion resistance and to endure the external load by integrating. CONSTITUTION: Each corner is cut to fold each border downward. Each portion of a disk corresponding to a rainwater inflow hole(12) is cut to form the rainwater inflow hole. The cut center portion and each border portion are pressurized downward and folded downward. Thereby, many rainwater inflow holes are formed. Therefore, a rainwater receiving plate(10) is completed. Welding is unnecessary to simplify the number of processes. Moreover, strength and corrosion resistance are improved.
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