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  管材系列

  HDPE钢带增强聚乙烯螺旋波纹管热熔承插电熔连接市政埋地雨水管

  ¥19.00
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  管材系列

  厂家定制pe钢骨架聚乙烯复合管 钢骨架市政供水消防管塑料复合管

  ¥10.00
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  管材系列

  孔网钢带钢骨架复合管聚乙烯塑料消防管道给水钢骨架钢丝网骨架

  ¥10.00
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  管材系列

  桥梁预应力金属镀锌波纹管预埋穿钢绞线 大口径钢制镀锌属波纹管

  ¥1.00