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1. On the roads :
* Where the speed-down is required in the precincts of government buildings, apartments, schools, hospitals,
research institutes, military camps etc.
* In front of toll-gate (either on public roads or parking-lots), car-park entrances,
on dangerous spots on
back-side roads.
2. As wall-protectors :
* For parking lot ramp's breast-wall.
* As border wall protectors between side walk and car-lane in tunnels.
* As wall protectors of curved roads.
* For wherever wall protectors are necessarily required.
3. As guide-lines :
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