Count. The components of the suspended ceiling include: hanger, skeleton and surface layer, in which the surface layer is used for decoration with hangers, so the hangers are a part of the suspended ceiling. Ceiling refers to the decoration at the top of the living environment of the house. Simply speaking, it refers to the decoration of ceiling, which is one of the important components of indoor decoration. The suspended ceiling has the functions of heat preservation, heat insulation, sound insulation and sound absorption, and is also the hidden layer of electrical, ventilation and air conditioning, communication and fire protection, alarm pipeline equipment and other projects.