It is a ready-bended, carrier profile used in curved suspended ceiling applications.
Product Standard: TS EN 14195
It is a special Gypsum Board® type which is resistant to impact, its strength, fire and water resistance and sound insulation properties have been increased. The front and back sides are covered with blue paper.
In Gypsum Board Partition Systems, it is the profile applied horizontally.
It is a joint filler plaster used to fill joints in gypsum plasterboard joints.