𐄀 Technology Connection to Future
It is a subsidiary of Zhejiang Yonggui Electric Equipment Co., Ltd. The predecessor of the firm is Chongqing Ruixuan Transit Equipment Co., Ltd., it was renamed to Chongqing Yonggui after the Mergers and Acquisitions by Yonggui Group in 2016. The company has been long-term devoted to the design & develop, manufacture, sales and services of gangways and bellows for trains and buses.
B-type gangway (single)
B-type gangway (threepieces)
| DIFFERENCES | Illustration | Comparison explaination | |
structural optimization | Others |  | Friction visible. The paint will be worn, unsightly and increase the cost |
YG self-design |  | Friction invisible. Protect paint. | |
structural optimization | Others |  | Large gap. Easy to pinch. |
| YG self-design |  | Small gap. Beautifui&More reliable | |
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