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重庆B型地铁列检中检查空气弹簧胶囊应无损伤、无老化裂纹，铅发丝无裸露。如有裂纹，其长度须小于20×10mm。（）

发布于 2023-03-18 18:36:56

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michael1062 2023-03-18

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