#774559

#774559: What is the frequency of inspection of lightning protection.

What is the frequency of inspection of lightning protection.
Варианты ответа:
  • At least once a year
  • At least once in six months
  • At least once per quarter

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Тематика: Автоматические системы пожаротушения и связь Пожарная безопасность Техника безопасности и санитария
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