自動不<unk>鋼障礙門或折<unk>圍<unk>門,以保護在堵塞道路的外部交通.

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• fence
• safe
• barrier
• safety
• protection
• guard
• prevention
• security
• ppe
• gate
• aluminum
• iron
• steel
• street
• road
• park
• road safety
• parking
• equipment
• entrance
• garden
• industry
• door
• outdoor
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