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Remain intact hinges / Industry

Remain intact hinges
Remain intact hinges

In everyday life, we often forget to close encounter, forgot to close the window, etc., may also appear open windows closing on their own. Which products in the hinge a magnet, and you can always adjust the positive and negative poles, to meet the needs of different situations.

University

Chengdu University of Technology

Chengdu University of Technology
chengdu, China