With the exception of ventilator sections, which are shop-fabricated, some aluminium windows are completely assembled at the job. Picture windows with many combinations of ventilating sash are also furnished in aluminum.

 
  • 铝窗除开启部分是工厂预制的以外,完全是现场组装。带许多通风窗组合的观景窗也用铝装璜。
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