PE管、PPR管、PVC管、UPVC管的区别 - 百度经验
17 June 2025 admin
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PPR(pentatrico-peptide-repeats)：是一种管材——是目前市面卖得较多的一种管材。PP-R又叫三型聚丙烯管、无规共聚聚丙烯，采用无规共聚聚丙烯经挤出成为管材，注塑成为管件。是欧洲90年代初开发应用的新型塑料管道产品。PP-R是80年代末，采用气相共聚工艺使5%左右 ...
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