Lead fine powder fine density propaganda device

The utility model discloses a fine density propaganda device for lead fine powder. The fine density propaganda device comprises a lifting adjusting auxiliary mechanism, a lead fine powder sample sliding display mechanism, a propaganda board, a main supporting board, a supporting stand column, a mova...

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Bibliographic Details
Main Authors GAO WEI, WANG CHUNDI, QU WEIMING, AN HAILIN, CHU LIJIN, ZHAO CHUNPENG
Format Patent
LanguageChinese
English
Published 30.11.2021
Subjects
ADVERTISING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
LABELS OR NAME-PLATES
PHYSICS
SEALS
SIGNS
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