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Freon

Freons are a group of chlorofluorocarbons use primarily as a refrigerant[?]. Prior to their implication as a major contributor to the greenhouse effect, freons were also used as aerosol propellants[?] and to foam[?] up polymer materials.



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... de Information de la Defensa[?] (CESID[?]) - 2002. Centro Nacional de Inteligencia[?] (CNI[?]) (2002 - ) Sweden Säkerhetspolisen[?] ...

 
 
 
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