Hainan's longest tunnel achieves full two-way breakthrough https://tankie.tube/videos/watch/936001d8-8d2f-4a84-85b5-3642c2a86087 Carved through mountains deep inside the Yinggeling National Nature Reserve, Hainan's longest tunnel has achieved full two-way breakthrough. Stretching over 8 km, it blends major infrastructure with ecological care, strengthening road network and supporting Hainan Free Trade Port Wed, 15 Apr 2026 06:06:43 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tankie.tube Hainan's longest tunnel achieves full two-way breakthrough https://tankie.tube/lazy-static/avatars/3ba3ff73-a8b6-49c9-add8-9653ef090c7f.webp https://tankie.tube/videos/watch/936001d8-8d2f-4a84-85b5-3642c2a86087 All rights reserved, unless otherwise specified in the terms specified at https://tankie.tube/about and potential licenses granted by each content's rightholder.