oil drum

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https://www.wikidata.org/wiki/Q2738285

The spirit of Lei Feng has developed greatly, selling junk to the state is done with great force

The spirit of Lei Feng has developed greatly, selling junk to the state is done with great force (Early 1970s)

Prevention of fires and explosions

Prevention of fires and explosions (1984, April)

Register of heroes -- Lan Jianye

Register of heroes -- Lan Jianye (1984, September)

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