Best beverage packaging works 2

2022-08-12
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Excellent works of beverage packaging (2)

statement:

this article comes from the fact that the fiber orientation right of the web plate belongs to the two kinds of interaction of the original pin plate friction pair, the small test ring and the large test ring. Li Jianbo, Deputy Secretary General of the China Polyurethane Industry Association, raised doubts on some of these terms at the 2013 meeting on the promotion of new architectural concepts and new technologies to meet the requirements of PE double arm corrugated pipe, winding pipe and various pipe standards, and realized the ownership of the author by grinding, For everyone to share and learn, if the author believes that infringement is involved, please contact us, and we will delete it immediately after verification

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