#774514

#774514: Oil on the surface should be covered with soil layer is not less than...

Oil on the surface should be covered with soil layer is not less than...
Варианты ответа:
  • 300 mm.
  • 400 mm.
  • 500 mm.

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