puller bolt造句

• Metal spoon chain puller bolt
  金属匙链拉钉。
• When you meet needs to help , draws out the metal the spoon chain puller bolt , it can send out immediately reports to the police the sound , brings to passer - by s attention to render the assistance
  当你遇到需要帮助时，拔出金属的匙链拉钉，它能立即发出报警声，引起途人的注意给予帮助。