The utility model has the advantages of simple structure, light weight and high safety.
本实用新型具有结构简单、重量轻、安全性能高的优点。
The utility has simple structure, light weight, and can be easily made and installed.
本实用新型不仅结构简单、重量轻，而且制作容易、安装方便。
The utility has simple structure, light weight, and can be easily made and installed.
本实用新型不仅结构简单、重量轻，而且制作容易、安装方便。
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