欧美激情在线视频一区二区三区,亚洲天堂一区二区三区四区五区,一区二区三区高清视频在线观看,久久无码AV一区二区三区电影网,男女猛烈无遮挡免费视频,欧洲猛男少妇又大又粗,久久国产亚洲精品赲碰热,gav男同av无码久久

Limited steady device
Release time:2020-07-11    Auhor:    Source:    Click:8066   

Limited steady device is an important part of support device for contact wire. The mechanical performance of steady device (Space posture and position, vibration characteristics, stability) has a decisive influence on operational safety and quality of current receiving of pantograph and overhead contact system. The structure of the device shall be simple, stable, safe and reliable. The components of device shall be less and light, without   concentrated load. and the device shall be easy to assemble and adjust with good anti-corrosion properties.

This manual details the components of the limited steady device.image.pngimage.png

image.png

image.png

image.png

image.png