detail new prefabricated structure steel carpentry with pillars beams and galvanized bolts |
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| navigate by keyword : galvanized steel zincplated zinc galvanizing precast industrial crossbeam roof beam architectural column construction site frame nut fastener bolt pillar building activity prefabricated industry detail metal iron structure bolts engineering girder assembly calculation calculating rooftop structures built rod buildings design modern technology architecture engineer connection new carpentry pillars beams |
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| Detail of a new prefabricated structure, steel carpentry with pillars, steel beams and galvanized steel bolts. |
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