drilling

A new appearance on the high seas

A new appearance on the high seas (1977, December)

Well-drilling on-the-spot meeting

Well-drilling on-the-spot meeting (1974)

I donate oil to the nation

I donate oil to the nation (1976, April)

Study the spirit of Daqing

Study the spirit of Daqing (1965, June)

Our commune has constructed a well drilling machine

Our commune has constructed a well drilling machine (1973, June)

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