The design of the new public transportation handrail adopts a top and bottom pull ring structure, so as to adapt to the use of most people due to height and age, and serve the public. At the same time, it bid farewell to the traditional cloth material as the shaft, and the uncontrollability is too high. The fixed rotation angle designed for it avoids severe body shaking due to inertia such as subway and bus.
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If you hold this for 20 minutes, your hands will be abandoned
Is the finger that wide? Ha, ha, ha
The first thing to consider is the strength of sufficient safety.
I don't quite understand where the idea is