https://clinfowiki.win/wiki/Po....st:UPVC_Door_Panel_R
uPVC door panels provide a long-term alternative to composite doors. They are durable, effective and resistant to fire. They are also cost-effective and easy to maintain. The most convenient way to insert a cat flap into a uPVC panel is to order an extra double-glazed sealed unit with a pre-cut hole for the flap. This is much more secure than cutting the hole in an existing glass panel. UPVC Doors are easy to maintain Unlike traditional wooden doors, uPVC doors don't require frequent painting or sanding. They are als