Why Do Small Tape Measures Roll Up?

Why Do Small Tape Measures Roll Up?

Tape can roll up because tape with spring inside, lion small tape device the high elasticity of 65 mn spring, sturdy and durable service life is long, when pulled foot belt length measurement, actual it is the long tape measure and the length of the spring, after the measurement, the inside of...
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   Tape can roll up because tape with spring inside, lion small tape device the high elasticity of 65 mn spring, sturdy and durable service life is long, when pulled foot belt length measurement, actual it is the long tape measure and the length of the spring, after the measurement, the inside of the tape spring automatically contraction, tape measure under the action of spring force, also follow contract, so the tape will automatically recycling.


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