broken drive chain contact
层门安全开关 landing door safety switch 主驱动链保护装配 main drive chain guard ; broken drive chain contact 内部通话装配 Internal call system ..
基于2个网页-相关网页
... main drive chain 主驱动链 main drive chain guard 主驱动链保护装配 main drive shaft 主驱动轴 ...
基于2个网页-相关网页