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An aluminum Christmas tree is a type of artificial Christmas tree that was popular in the United States from 1958 until about the mid-1960s. As its name suggests, the tree is made of aluminum , featuring foil needles and illumination from below via a rotating color wheel .
Hazard pictograms form part of the international Globally Harmonized System of Classification and Labelling of Chemicals (GHS). Two sets of pictograms are included within the GHS: one for the labelling of containers and for workplace hazard warnings, and a second for use during the transport of dangerous goods.
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The following other wikis use this file: Usage on ar.wikipedia.org إدارة السلامة والصحة المهنية; Usage on ca.wikipedia.org