oil drum

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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)

Do a good job in fire prevention in industrial enterprises, to protect socialist economic construction

Do a good job in fire prevention in industrial enterprises, to protect socialist economic construction (early 1970s)

Effects of energy saving are good

Effects of energy saving are good (1981)

What is energy

What is energy (1981)

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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