Child safety locks prevent opening from the inside.
Wind restrictors stop the sash from swinging open unexpectedly.
Ventilation
Micro‑ventilation mechanisms create a minimal gap for air exchange.
Ventilation stops (keeps) hold the sash in position for controlled airflow.
Durability and Maintenance
Anti‑corrosion coating protects metal parts from rust.
Adjustable mechanisms allow sash alignment.
Modular design enables replacing individual parts without changing the entire hardware set.
Aesthetics
Decorative covers hide hinges and fasteners.
A variety of handle designs complement interior styling.
High‑quality hardware ensures smooth window operation, airtightness, security, and long service life — provided it is correctly installed and regularly maintained.