Best Tilting Trike Where Can I Find A Key For The Lock On A 'Si' Tilting Double Glazed Window?

Where can I find a key for the lock on a 'Si' tilting double glazed window? - best tilting trike

I would like made a key for a lock on that from the window of a commercially available double-glazing supports handle - the word "yes", I think. It is necessary to open the window fully open instead of switching to the inside too. I have for this brand of double-glazed windows on the internet, but I can not find everywhere. I really appreciate it if someone knew where I could get a key to fit the lock to her.

Thanks