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It was designed so that a custom is applied on the gas timer as it becomes locked when turned horizontally and opened when timer is under operation upon starting from the vertical direction.
The timer operates acoustically and makes sounds for notification, and if it is not visually indicated as being in a horizontal position, it can be identified right away that gas is coming out.
daegu university
Daegu, South Korea
Jeong ChanYeop,
Daegu University
Hwang InKyu,
SangkyungLee.jpg