When was the Band-Aid introduced to China? What was the earliest band-aid?

Band-aid was invented by Qiang Sen employee El Dixon in the1920s, and was widely popularized in World War II.

In the late 1940s, with the arrival of American soldiers, Band-Aids were introduced to China. But the real entry into the market was in the 1970s and 1980s after the reform and opening up.

The early band-aid was to apply glue on a piece of hard gauze, then fold another gauze into a gauze pad and put it in the middle of the bandage.

This is the legend in the band-aid patent book:

Legend of instruction manual:

Early packaging: