https://fallesen-bojsen-2.blog....bright.net/20-upvc-w
Security Features of Double Glazed Windows Modern double-glazed frames have additional security features that make it more difficult for burglars open them. These include high-quality handles and strong locking mechanisms. Espag handles have a spindle at the back of the handle which operates the multi-point lock in the window frame. They are common on modern uPVC windows and come in cranked or straight variations. High-Tech Locking Mechanisms Window locks are a vital part o
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