2 Bilder zum Thema "quarternary ammonium" bei ClipDealer

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Interior Disinfection Procedur. Worker Wearing Hazmat Suit and Bio Chemical Mask Spraying Building Interior Using Quaternary Ammonium Chemical Agents. Biological Hazard Services Job.
Disinfection For Virus Killing. Worker in Hazmat Suit and Face Protection Mask Spraying Interior Using Chemical Agents To Stop Spreading Virus Infections.

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