Expansion Seals：
The ductility of steel is used to prevent cracking from temperature changes and vibration, and can also be used under the roof in combination with calcium silicate boards.
Resilient Channel：
In addition to ordinary dry-wall partition, the host room's acoustic partition also has resilient channels. The high-energy noise and vibration generated during the operation of the host in the room easily contribute to cracks on the surface of ordinary dry-wall partition. Therefore, resilient channels are required to effectively insulate the energy transfer.
Horizontal Support Bars：
The internal walls for various types of buildings are RC walls or other walls with coarse surfaces for decorating purposes. They can strengthen indoor thermal insulation effects and acoustics control (with thermal acoustic wool inside).
