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聚氨酯預制直埋保溫管 - 預制直埋保溫管

      聚氨酯預制直埋保溫管廠家產品保溫性能好,產品質量好熱損失僅為傳統管材的25%,長期運行可節約大量能源,具有熱損失少抗壓性能強、防水防腐性能好規格型號全價格低等優點。

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