复合管材是以金属与热塑性塑料复合结构为基础的管材 , 内衬塑聚丙烯、聚乙烯或外焊接交联聚乙烯等非金属材料成型，具有金属管材和非金属管材的优点。
研究了钢塑复合管材料及成型设备。
It studied the materials and the moulding equipment of steel-plastic composites pipe.
讨论了其防火机理，介绍了其在塑料板材、复合管材上的应用。
Its fire resistant mechanism was discussed and application on the plastic board and composition pipe were introduced.
复合管材有铝塑复合管、涂塑钢管、钢塑复合管、塑复铜管等。
There are aluminum-plastic composite pipe composite pipe, plastic pipe, steel-plastic composite pipe, copper pipe, and other complex plastic.
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