| 摘要 |
PROBLEM TO BE SOLVED: To accurately mount a reflector in optimum effective position and direction by simple works in conformity with the conditions of installation of the installation field of a guard fence. SOLUTION: A supporting base material 4 for the reflecting material is fixed and mounted extending over the overall length of a side face from the roadway side of a cross beam 2 for the guard fence, and the reflecting material 3 is fitted and supported into the recessed groove 42 of the supporting base material 4.
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