What is the term for the recessed ceiling in the decoration design?

Some are made of metal, while others are made of wood.

The black lines on the suspended ceiling in the decoration are made with plaster lines.

What you said is terrible, whose indoor temperature is forty or fifty degrees! Under normal circumstances, a decoration can be applied for more than ten years!

Flat ceilings.

Flat ceilings are generally made of PVC board, gypsum board, mineral wool sound-absorbing board, fiberglass board, glass, etc., and the lighting is placed in the top plane or on the ceiling, which is generally arranged in the bathroom, kitchen, balcony and hallway. >>>More

First, the requirements of office lighting.

The lighting in the office can be natural light, because natural light is good for physical and mental health, and it also saves a lot of resources. However, natural light also has certain drawbacks, it will be affected by time and weather, so it still needs a certain amount of artificial light to compensate. Artificial light compensation is available in ordinary fluorescent lamps and LED fluorescent lamps. >>>More