PVC stands for polyvinyl chloride. It is a chlorinated hydrocarbon polymer. In its natural state, it is rigid and brittle.
Machine, device, having a unique purpose, that augments or replaces human or animal effort for the accomplishment of physical tasks
A tool is an object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task.
Hinges are flexible, jointed devices that attach to swinging parts, functioning as mechanical bearings to connect two moving objects or points
Mortise door locks are a type of locking mechanism that is installed within the door itself.
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