What is the difference between a walled keel and a keel?
In the wall with the name of light steel keel material, the general "heaven and earth keel", "vertical keel", and "through the heart keel" - these three. Among them, the heaven and earth keel and through the keel are sideways, vertical keel is up and down direction. The role of these three keels, different, have not heard of "through keel" the name.
Tonglong keel is also called the main keel, used to connect the ceiling and the ceiling is the main load-bearing, generally linked by the hanging bar. The cross-keel, also known as heaven and earth keel, is fixed on the main keel, is used to fix the ceiling gypsum board.
Long keel and through the keel is not the same thing, the dragon keel professional name for the world keel.
Through the keel, in fact, is the 38 main keel, play a fixed and strengthen the role of vertical keel, so that the wall is more solid.
