drilling

When moving the drill up and down, the drill operator must pay attention to the movement of the drill block

When moving the drill up and down, the drill operator must pay attention to the movement of the drill block (early 1950s)

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)

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)

A new appearance on the high seas

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

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