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The advancement of technology is everyday faster, to prevent interested parties can quickly break locks, and resulting in loss of life or the property, the design has a handle that can do a very easy 180-degree reversal that can jam the door, let outside people much hard to break into the house.
Kaohsiung City, Taiwan
Ying-Ling. Yao Chia- Hui . Yang Meng-Yin. Hsu Guan-Ling . LU