Beam pumping unit
Contributor: zhengzaishanchu
ID : 99034072
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Palabras clave
sunset, sky, energy, equipment, machine, oil, industry, silhouette, rig, drilling, unit, pump, fuel, technology, economic, work, gas, process, orange, diesel, wealth, money, pipe, background, beautiful, construction, china, homework, blue, labor, strength, heavy, horsehead, industrial, crude oil, rod, field, digging, mechanical, derrick, crude, sun, engineering, steel, natural, exploration, sunrise, rockingElementos relacionados
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