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.

During the construction of ventilation and air-conditioning systems, there are often problems with the installation of some external wall louvers. In order to ensure the quality of the project and make the system achieve the expected purpose, the following problems should be paid attention to during......