Beam balanced pumping unit under the setting sun
Contributor: junrong
ID : 237780125
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Keywords
machinery, equipment, facility, tool, pump, metal, steel, drilling, mining, development, construction, reserve, derrick, solid, oil, energy, industrial, manufacturing, chemical, petrochemical, sky, technology, economy, business, nostalgia, traditional, operation, production, closeup, open, sun, evening, light, china, silhouette, sea, water, corrugated, resourceRelated items
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