京华提示：同等质量比价格，同等价格比服务，货真价实才是硬道理!!
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There are two forms of open daylighting hoods: 1. Manual opening type 2. Electric opening type | |
Manual opening engineering practices 1. The opening angle should be less than 30 degrees, and the opening height of the skylight should be about 200mm-400mm; 2. Only applicable to metal connection frame structure; 3. Since it is opened manually, it is best for the building to be a low-rise building with access to the roof; 4. Installation method: The base of the connection frame and the foundation can be expanded or welded and waterproofed. | |
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