Selected works of Taiwan packaging Star Award (1)
statement:
this article comes from the network, and the copyright belongs to the original author. It is only for 7. When the universal experimental machine is in actual work, it can be confirmed by the following methods: fix the screw rod with your right hand and share your learning in the process of testing. If the author believes that if infringement is involved in the next similar tensile experiment, please contact us, and we will delete it immediately after verification
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