Crank balanced beam pumping unit in Jidong oilfield sunset scenery, closeup of photo
Contributor: junrong
ID : 237157508
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Keywords
china, beam, crank, balance, crude oil, machinery, equipment, energy, resource, exploration, mining, industrial, circulation, traction, spin, setting sun, cloud, evening, light, orange, colours, space, silhouette, beautiful, feature, background, outline, landscape, nature, environment, underground, strata, geologyRelated items
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