Heat shrink tubing or heat shrink is an inherent part of any electric wiring system. It is a plastic tube which shrinks in a specified ratio and provides assistance in the sphere of electrical engineering in several ways. These come in different varieties and types with the composition of each being determined by the desired application. The available varieties range from the microscopically-thin walled ones to the heavy-walled stiff tubing thus fulfilling differing requirements of environmental stress.
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