| 摘要 |
The invention relates to a method using open-section moulds for the production of shutters having initially the form of open profiles (not tubular profiles) and being, in the sequel, shaped throughout the perforation stage. According to this method a series of four aluminium rolling shutter profiles (1, 3, 4, 5) forming -when assembled- the rolling shutters (2, 2α, 2&bgr;, 2γ) and one series of two aluminium shutter profiles (6, 7) forming the shutters (8,8α) are manufactured. |
