The twin wall corrugated pipes and the kinds of its material were mainly introduced, analysed and compared. The applied priority of PP large diameter twin wall corrugated pipes was emphasised.

• 主要介绍了双壁波纹管及其所用材料的种类并对它们进行了分析比较,重点介绍了聚丙烯树脂在大口径双壁波纹管上的应用优势。