Environmental protection propaganda board facilitating propaganda paper replacement
A technology for propaganda boards and propaganda paper, which is applied in the directions of cards, instruments, display devices, etc., can solve the problems of inconvenient replacement of propaganda paper, lack of sealing protection, etc., and achieve the effects of smooth sliding, quick disassembly and assembly, and prolonging the service life.
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0024] refer to Figure 1-6 , an environmental protection bulletin board for easy replacement of propaganda paper, including two first-level support plates 1 and second-level support plates 2, the first-level support plate 1 and the second-level support plate 2 can be hollow flat plates made of stainless steel to avoid rust Traces, in order to prolong the service life of the bulletin board, the bottom of the first-level support plate 1 and the second-level support plate 2 are welded to form two load-bearing frames, and the space between the first-level support plate 1 and the second-level support plate 2 is set in the cavity 3 , the height of the cavity 3 is twice th...
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