Secondly, less metal usage, and less cost.
Thirdly, can be reused after accident. easy to maintain and repair. long service life
Fourth, keep clean(no snow, dust etc.)
Fifth, a good view to install in open scenic area.
Blowing sand, dust or snow gets a free passage without blockage and thus does not get deposited on carriageway which avoids accidents due to sand deposits on roads
Secondly, less metal usage, and less cost.Thirdly, can be reused after accident. easy to maintain and repair. long service lifeFourth, keep clean(no snow, dust etc.)Fifth, a good view to install in open scenic area.Blowing sand, dust or snow gets a free passage without blockage and thus does not get deposited on carriageway which avoids accidents due to sand deposits on roads
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