單項(xiàng)選擇題轉(zhuǎn)K5、轉(zhuǎn)K6型轉(zhuǎn)向架側(cè)架滑槽磨耗板材質(zhì)為T10或()

A.47Mn2Si2TiB
B.0Cr18Ni9
C.ADI
D.普碳鋼


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