What is the material of the black bar presented by the ceiling of the living room?

If it is a villa, it is necessary to use Qinggang, if it is a smaller job, it is recommended to use a wooden dragon, of course, if you are afraid of deformation, use gypsum board, gypsum board is the cheapest material, and there are more styles that can be done. The ceiling has a light steel keel gypsum board ceiling, a wooden keel gypsum board ceiling, and the ceiling is divided into a ceiling and a ceiling, usually the ceiling of the living room is not on the person.

When installing, it must be in the correct position and firmly connected. The decorative materials used for ceilings, walls and floors should be non-combustible or flame-retardant materials, and wooden materials are flammable, so they should be fireproofed. Lighting, air conditioning and other electrical pipelines are generally laid in the ceiling, and they should be operated in strict accordance with the specifications to avoid fire hazards.

If the ceiling is made of colorful stained glass and frosted glass, it is very distinctive, and it is more and more used in home decoration, but if the materials are not appropriate, it is easy to cause safety accidents. For safe use, safety glass should be used in suspended ceilings and other areas that are prone to impact.

It depends on what material you use to hang it, if it is a calcium silicate board, it may be that the tape pasted during the painting is exposed, and the scraping is too thin.

It is not a black bar embedded in the ceiling, but a groove left in the ceiling, which must be dark black under the illumination of the light.

It's a black bar shiny, and it's sold in the market, and I forgot what it's called.