DIN CEN/TS 81-11-2011 电梯建造和安装的安全规则.基本规则和释义.第11部分:有关EN 81标准族的解释;德文版本CEN/TC 81-11-2011
Safety rules for the construction and installation of lifts - Basics and interpretations - Part 11: Interpretations related to EN 81 family of standards; German version CEN/TC 81-11:2011