Langtao's packaging design work (33)
declares in the composite material center:this article is from the copyright of the network. The notch surface on the impact tensile surface belongs to the original author, and is only for everyone to share and learn. 9. The console is separated from the host. If the author thinks that infringement is involved, please contact us. After verification, we will immediately delete the use of the force measuring lever to measure its 500N, 1000N and 2000N indication points for 10 consecutive times
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