广东
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广州530*530mm格构柱，钢立柱，广州钢管桩厂家，广州格构柱厂家，广州钢构柱厂家，410*410mm格构柱，420*420mm格构柱，440*440mm格构柱，530*530mm格构柱，540*540mm格构柱，650*650mm格构柱，650*650mm格构柱，广州 深圳 珠海 中山 东莞格构柱厂家，Q235B格构柱，Q355B格构柱，角钢140*14mm，缀板420*300*10mm
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