Асбест: Засвар хоорондын ялгаа

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Мөр 16:
 
==Гадны холбоос==
*[http://hesa.etui-rehs.org/uk/dossiers/dossier.asp Asbestos in the World]
* [http://www.asbestosdoc.com Asbestosdoc.com] - Асбест