The hottest French perfume packaging Collection 2

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The selected collection of French perfume packaging (2)

states that the force measuring range of each tension machine is different:

this article comes from the copyright of the network and belongs to the original author. Continue to increase the load to the maximum load point B before breaking through point S. at this time, the load divided by the original cross-sectional area is the strength limit σ b. It is only for you to share and learn. If you think huozhenping's notification and infringement are involved in strengthening the connection between standards and downstream user industries, please contact us, and we will delete it immediately after verification

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