| 摘要 |
PURPOSE: An anti-theft device for guardrail is provided to prevent theft by preventing that a guardrail is disassembled without a key and to prevent the interference of a washer. CONSTITUTION: An anti-theft device for guardrail comprises a key(25) and a support key(40). The key is inserted into a key groove(13) and compressed to be mounted. The key has a support key groove(26) upon the upper side. The support key is combined and is inserted in the support key groove of the key.
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