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Rotary Safety Hammer / safety hammer

Rotary Safety Hammer
Rotary Safety Hammer

Rotary safety hammer is smaller and easier for all people, especially for women and children, to use when there’s an emergency in the bus. People could follow the conspicuous signals marked 1 and 2 to break the window easily and quickly to save more time for rescue.

University

Xi’an university of Technology

Xi’an university of Technology
Xi’an, China

Liu Fan,
Xi’an university of Technology

Gao Jing,
Xi’an university of Technology