It is a ready-bended, carrier profile used in curved suspended ceiling applications.
Product Standard: TS EN 14195
It is a joint filler plaster used to fill joints in gypsum plasterboard joints.
In Gypsum Board Suspended Ceiling Systems; It is the profile used in floor and ceiling in walled wall cladding systems.
It is used to protect outer corners against impacts and to obtain a smooth surface in drywall applications.