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專業生產銷售大口徑厚壁國標螺旋鋼管，廠內加工防腐/保溫/涂塑

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螺旋鋼管過磅價格

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螺旋鋼管價格和超重過磅價格

螺旋鋼管價格和超重過磅價格

購買螺旋鋼管時，客戶必須清楚地詢問何時將螺旋鋼管的價格分為標尺價格和過磅價格。標尺的價格是按理論重量結算合同，而過磅的價格則按過磅的實際重量結算。通常情況下，...

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