IEC 60392-1972 Guide for the drafting of specifications for microwave ferrites《微波铁氧体规范起草编写指南》.pdf

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IEC TR2 61464-1998 Insulated bushings - Guide for the interpretation of dissolved gas analysis (DGA) in bushings where oil is the impregnating medium of the mai.pdf

IEC TR 61241-2-2-1993 Electrical apparatus for use in the presence of combustible dust part 2 test methods section 2 method for determining the electrical resis.pdf

IEC TR 60972-1989 Classification and interpretation of new lighting products《新型照明产品的分类和说明》.pdf

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IEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdf

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