cleaning

Welcome the new year in a clean and hygienic manner

Welcome the new year in a clean and hygienic manner (1955, August)

Cleaning equipment and materiel

Cleaning equipment and materiel (1971)

Cleaning streets and buildings

Cleaning streets and buildings (1971)

Mobilize to pay attention to hygiene, reduce disease and improve health levels

Mobilize to pay attention to hygiene, reduce disease and improve health levels (1974)

Ordinary worker

Ordinary worker (ca. 1977)

Today we are on duty

Today we are on duty (1979, January)

Take part in labor enthusiastically, cherish the fruits of labor

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

Ode to youth I

Ode to youth I (1983, February)

Love hygiene, stress civilization

Love hygiene, stress civilization (1983, April)

Prevent viral hepatitis

Prevent viral hepatitis (1983, December)

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)

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)

Maintain a clean environment, safeguard good order

Maintain a clean environment, safeguard good order (1997, September)

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