2. Drill a hole in the ceiling, fix the expansion bolt, then cut it into appropriate length with a screw, and fix the square keel with a U-hook 0.5cm above the corner line of Yin and Yang.
3, ready to triangle keel, with Angle iron set on it, play a fixed role. Measure the size, put one every 30cm or so, and don't fix it yet.
4. Prepare aluminum gusset plates, generally 30x30 in size, and surround them with aluminum sheets, so that they can be embedded into triangular keels for fixing.
5. Fasten the aluminum gusset plate upward on one side of the triangular keel with the groove to fix the aluminum gusset plate. Because it is under great pressure, there is no need to worry about falling. Starting from the side along the wall, the side close to the wall can be cut off with a knife to facilitate edge fastening.
6. According to the operation steps, the aluminum gusset plate is laid once from the edge to the center, and the gas stove needs to be perforated, and then two squares are left in the center as decorative lights.