Concealed modules are angles that make up the frame in metal suspended ceiling systems.
Product Standard: TS EN 13964
It is a special drywall type which has high sound insulation and can be applied quickly and easily. The front and back sides are covered with brown paper.
It is a special Gypsum Board type which is covered with glass fibre mattress and has fire resistance for up to 3 hours.
This profile is used for curved suspended ceiling applications.