CRH2A统型动车组车顶检修时,车顶板无塌陷、破损,防滑地胶剥离每辆车不超过3处, 每处剥离不大于()

A.90x90mm B.90x100mm C.100x100mm D.100x120mm

时间:2023-08-09 13:18:30

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