单项选择题
以下关于8090型轧辊描述正确的是()
A."辊径800mm辊宽900mm"
B."辊径900mm辊宽800mm"
C."辊周长800mm辊宽900mm"
D."辊周长900mm辊宽800mm"
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单项选择题
A."辊径800mm辊宽900mm"
B."辊径900mm辊宽800mm"
C."辊周长800mm辊宽900mm"
D."辊周长900mm辊宽800mm"
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