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*Made of 1.2mm mild steel
*A special design to collect the keys and put them in the small locket; then each authorized worker puts his own padlock on the box;
*Only after the last worker removes his padlock can all workers get their respective keys；
*Suitable for 12 or 20 workers.
*The lock outside the box which can protect the box not easy to be opened during hanging.China Loto Key Station & Management System factory
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