单项选择题
A.0.1° B.0.2° C.0.3° D.0.4°
A.20mm B.50mm C.30mm D.35mm
A.20% B.30% C.40% D.50%
A.工作辊串辊 B.调节倾斜 C.中间辊弯辊 D.调节点冷却
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