| 摘要 |
A weed control apron block (10) laid on the boundary of a sidewalk. A step portion (113) is provided on the sidewalk-side upper end edge (111) of the weed control apron block (10). A member having a high thermal conductivity, e.g. an iron plate (20), is installed in the step portion (113). The iron plate (20) is a flat plate member extending over the entire longitudinal length of the step portion (113). A heating wire may be installed in the step portion (113).
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