https://fkwiki.win/wiki/Post:1....5_Unquestionably_Goo
Security Features of Double Glazed Windows Modern double-glazed frames come with additional security features that make it harder for burglars to open them. They have high-end handles and sturdy locking mechanisms. Espag handles are equipped with a spindle on the back of the handle that is responsible for the multi-point lock inside the window frame. These handles are very popular on uPVC windows. They are available in cranked and straight versions. High-Tech Locking Mechanisms Window locks are a cr