Newid Hinsawdd / Gwrthfesurau Trychineb Biz
From December 07, 2022 until December 09, 2022
Yn Koto - Tokyo Big Sight, Tokyo, Japan
Postiwyd gan Treganna Fair Net
https://www.city.sapporo.jp.e.ain.hp.transer.com/kankyo/ondanka/index.html
categorïau: Gwasanaethau Amgylcheddol
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