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Types of UPVC Door Handles If your upvc door handle is in need of replacement, it's important to find the best replacement for your home. A locksmith can provide and install high-security uPVC door handles with extra security features. The most important measurements to take are the measurement A (also known as PZ) as well as the length of the backplate. Make sure to check these measurements to ensure that your new uPVC handles will fit. Lever/Lever A lever is a solid bar that is pivotally positioned around a point (known as a Fulcrum). When you app
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