1. Inspection conducted

The problems to be checked include whether there are deformation, damage and other phenomena, and whether all the accessories of fire-proof glass windows are available and qualified, and the window sash can not have any warpage. If damage is found, it should be corrected before it can be used normally.

2. The front, back, left and right of the fire-proof glass window must adhere to a certain viewpoint

The viewpoint is generally 90 degrees, which can be proofread with a level ruler or through the hanging line method. The requirements are horizontal and vertical, and the requirements on the same horizontal line are the same.

3. The window frame shall be connected with the surrounding buildings

The fireproof glass window frame needs to be connected with the surrounding buildings into a whole, and the connecting accessories can be wood or iron. After the installation of the steel window frame is completed, the gap between the window frame and the building shall be filled with cement mortar, and it can be used only after a period of maintenance, which is generally more than 24 hours.

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