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Nowadays, many people enjoy sea travel. So cruise ship travel with a lot of people.
'life buoy' be prepared to fit the number of people. But when emergency situation..?
Existing life 'buoy' is used in own to rescue. But 'SAVE RING' is rescue one's self or with others person. So can handle effectively in an emergency situation.
Gyeongsan-si,, South Korea
Daegu, South Korea
Gyeongsan-si, South Korea