Joint:High grade PP,to be 360° swiveled,dismantled & assembled easily for cleaning
Joint seal ring:low—friction treated rubber
Support sprlng/center bolt:Stalnless steel 304
Adjustable joint knob:High grade PP with a molded-in brass nut locking with center bolt
Damper:To manually adjust airflow by a knob
Dome/cup hood:D375mm/200mm,high grade PP red,grey & transparent available
Tube:D110mm PVC
Bracket:High grade PP(ceiling/wall mounted)