In some cases, you may have to build this path yourself, but you should take care not to impactconnector performance while doing so.
在某些情况下，必须自己构建这个路径，但是在这么做时应该注意不要影响连接器性能。
2
With the impact and vibration of the crane, it may cause the rail installation loose, the connector fall off, deformation, crack, precision index super difference.