On indoor pillars or beams.

Safety belts for broken bridge doors and windows are usually fastened to indoor pillars or beams. First, you need to find a very safe fixture indoors, then pull a safety rope on the fixture, and then the decorator will install the five-point safety belt. The double hooks of the safety belt are hung on the safety rope, and there is someone supervising beside it, so that it can be operated.

Broken bridge aluminum doors and windows are broken bridge aluminum plus insulated glass, that is, the door frame and window frame are thermally insulated broken bridge aluminum profiles.