发布时间:2025-01-18 00:37:44
这个是波纹管的材质简写,PA是尼龙的,PE是聚乙烯的,PP是聚丙烯材质的。可以做阻燃型和剖开型的。用来保护线缆不受损害。耐酸、耐磨性能好。
准备买一台60寸或者65寸的电视首先纠结的是曲面还是平面两者差别大吗
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