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This is a column posted，Fliers cost in addition to the paste is no longer a column posted outside their own resources。To make more rational and the overall use of the product，And as a product to remind you to avoid unscientific product rationalization，For example: the use of paste or glue pushpin by us as a reasonable cost。With circular tape, inclined 45 degrees followed by sets of plates in the corresponding legislation gap Department,To facilitate the replacement and use of transparent plastic tape their toughness and squeeze by the forces generated to complete the fixed。
Sichuan Normal University
chengdu sichuan, China