Scalable assistant expansion platform has bigger operation space and foldable rail makes transportation displacement more convenient.
可伸缩扩展副平台，具有更大作业空间，配合可折叠围栏，运输移位更方便。
The utility model has the advantages of convenient operation, space saving, without the backwards and forwards transportation, etc.
本实用新型具有使用方便，节省空间，无需来回搬运等优点。
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