DIN EN 50411-2-5-2009 光纤通信系统用光纤布线结构和转接盒.产品规范.第2-5部分:1型密闭鼓风纤维微管S类和A类转接盒,德文版本EN 50411-2-5:2009
Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2-5: Sealed closures for air blown fibre microduct, type 1, for category S & A; German version EN 50411-2-5:2009