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简介:     从产能细分来看,普碳厚壁无缝管、石油无缝管均占比接近50%,直缝埋弧焊管为500万吨,螺旋缝埋弧焊管为1000万吨,高频直缝电阻焊管为4000万吨。从产能利用率上看,3年厚壁钢管总产能过剩是
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