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https://yamcode.com/the-evolut....ion-of-upvc-door-han
UPVC Door Handles Replacement Guide Replacing upvc door handles is a simple DIY project when you have the right measurements. These measurements include the distance from the backplate's mounting centres (sometimes called PZ) to the central point of keyhole. The most common kind of uPVC door handle is one with two inline levers both internal and external that is connected via spindle. They are used