cleaning

Cleaning streets and buildings

Cleaning streets and buildings (1971)

Cleaning equipment and materiel

Cleaning equipment and materiel (1971)

Take part in labor enthusiastically, cherish the fruits of labor

Take part in labor enthusiastically, cherish the fruits of labor (1982, May)

Prevent viral hepatitis

Prevent viral hepatitis (1983, December)

Love hygiene, stress civilization

Love hygiene, stress civilization (1983, April)

Ordinary worker

Ordinary worker (ca. 1977)

Be concerned about the collective, love and protect public goods / Unity, friendship, mutual help

Be concerned about the collective, love and protect public goods / Unity, friendship, mutual help (1996, October)

We must treasure public property, we must cherish flowers and trees

We must treasure public property, we must cherish flowers and trees (1987, June)

Pay attention to sanitation and hygiene, beautify the environment of schoolyards

Pay attention to sanitation and hygiene, beautify the environment of schoolyards (1987, June)

Today we are on duty

Today we are on duty (1979, January)

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