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Types of UPVC Door Handles If your upvc door handle needs replacing it's essential to find the best replacement for your home. A locksmith can supply and install high-security uPVC handles with added security features. The most important measurements to take are the measurement A (also known as PZ) and the length of the backplate. Check to ensure your new uPVC handles will fit. Lever/Lever A lever is a rod that pivots around the point. When you apply force to the end of
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