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90 Degrees Roto-Lock combines coded lock with door handle, getting you free from a troublesome set of padlock and key. When you want to lock the glass door, you can flip the end of the door handle on each side with 90-degree so the two ends will connect. Then, you can easily lock the door by rolling the code. 90 Degrees Roto-Lock makes it easier and more convenient to lock doors.
Zhengzhou University of Light Industry