Upper lid type U-shaped drainage ditch
U-shaped side ditch with upper lid according to recommended specifications E-2 of JISA5372 Appendix E.
■Type 1: Primarily installed on sidewalks. ■Type 2: It is rare for vehicles to run adjacent to it, and even if they do, it will be installed parallel to the roadway in places where they run at low speeds, such as during temporary stops.
- 企業：昭和コンクリート工業
- 価格：Other
