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GB 21521-2014 English PDF (GB21521-2014)

GB 21521-2014 English PDF (GB21521-2014)

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GB 21521-2014: Minimum allowable values of energy efficiency and energy efficiency grades for copy machines, printers and fax machines
This Standard specifies the energy efficiency grades, minimum allowable values of energy efficiency, energy conservation evaluating values, methods for test and calculation, inspection rules of general-purpose copy machines, printers, fax machines, multifunction devices.

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