https://world-news.wiki/wiki/U....sing_uPVC_Cat_Flap_D
A cat flap for a door made of UPVC is a great option to allow your pets to move around whenever they want. It is a straightforward 3-step installation procedure and can be fitted into glass doors, wooden doors or UPVC panels. This is a great option for those who wish to ensure their pets are secure and reduce energy costs. UPVC panels are durable and can withstand heat, moisture and UV. Easy to install If you have a cat you might want to consider installing a pet flap in your door or glass panel. This is a great way to keep y