How much do you know about plaster access openings?

Do you know what a plasterboard access port is? Perhaps many friends do not know what a gypsum board inspection port is. In fact, we can often see a gypsum board inspection port in our daily life, and it has been widely recognized in the domestic decoration industry for a few years. The gypsum board access port is used for the decoration of the access port of the engineering ceiling.
It is convenient for the maintenance of sewer pipes and lines in the later period, and ensures the integrity of the ceiling. Generally, it is suitable for many large-scale places such as office buildings, factories, schools, etc., and then learn about it. Gypsum board access opening - what are the installation processes of gypsum board access openings?

The raw materials of the product access port are gypsum and aluminum alloy strips, and the prefabricated components of the gypsum manhole with double aluminum side support cover include a base plate, a cover plate, and a movable opening on the base plate. An aluminum alloy wrapping edge is provided, and the upper edge of the wrapping edge has an everted lap edge, and the lap edge is overlapped with the upper edge of the movable port.