GB/T 35857-2018斜行电梯制造与安装安全规范国家标准
英文:Safety rules for the construction and installation of electric lifts with inclined path GB/T 35857-2018介绍: 国家标准《斜行电梯制...
英文:Safety rules for the construction and installation of electric lifts with inclined path GB/T 35857-2018介绍: 国家标准《斜行电梯制...