Penerangan
Casement or sliding invisible grilles are installed on a casement window or a sliding window (or door), which allows you to open your windows normally without any restriction. Because they require additional structures to fix them in place during installation. Furthermore, it’s a popular choice for homeowners who want or require their windows to be accessible, such as in the case of older HDB flats, where the air-conditioning compressor is located just outside the bedroom window.
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