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Extension is made for the elderly and the infirm. When getting off the bus, The elderly go down the stairs dangerously. The last step is placed on a bus close to the ground, but there is no handle to hold. So if there is a handle which stretches whenever the back door is open, the elderly and the infirm can go down the stairs more safely to the ground.
Daejeon si, South Korea
Daejeon, South Korea
Nam / seo-hee