Various
The ultimate manhole covers site

There are 15 manhole covers that are used by Nippon Water Service:       Show on map List mode

Tokyo - modular water cover Tokyo - a small water cover - Gate valve Tsuruoka - Water heater Nikko - Gate valve Nikko- air valve Nara - Water meter stop valve Nara - Water meter stop valve (2) Naoshima - Air valve Tokyo - fire hydrant (2) Tokyo - Water supply - Water meter Kami - a small water cover - Gate valve Kami - air valve Takamatsu - a small water cover - Gate valve Hatsukaichi - Small water meter Nikko - fire prevention water tank

The ultimate manhole covers site

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