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预制聚氨酯保温管适用于热水管道
预制聚氨酯保温管的外层是聚乙烯保护层，防腐蚀效果是很好的，尽管预制聚氨酯保温管是在很深的地下也不会受到腐蚀，使用效果是很好的。除此之外，预制聚氨酯保温管的耐高温性能也是很好的，并且当高温的水流经预制聚氨酯保温管道的时候并不会产生受热不均而爆炸的情况，十分的安全，因此预制聚氨酯保温管使用寿命也是很高
直埋式预制保温管聚氨酯预制直埋保温管聚氨酯泡沫塑料预制直埋管183/263
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