LUANNAN COUNTY, China - September 18, 2021: workers fix prefabricated insulation wallboards in the workshop, North China

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Photo credit: © YongXin Zhang / Alamy / Afripics
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Keywords: adjustment, beam, building, china, construction, fabricated, factory, firmness, fixed, flexibility, industry, insulation, line, materials, modeling, plant, prefabricated, production, steel, structure, thermal, wallboard, work, workers, workshop