فریون اور اس کا طریقہ کار: ایک جامع ریسرچ

Freon is a brand name coined by DuPont (now Chemours) to describe a family of synthetic chemical compounds known as ​chlorofluorocarbons (CFCs), ​hydrochlorofluorocarbons (HCFCs), and ​hydrofluorocarbons (HFCs).

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