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Underwriters' Laboratories Report on the Comparative Life, Fire and Explosion Hazards of Difluoromonochloromethane (freon 22).
Underwriters' Laboratories
出版[Pub.] for Kinetic chemicals, 1940
URLhttp://books.google.com.hk/books?id=GD5qGwAACAAJ&hl=&source=gbs_api