The grain size grade is about 4-5 class, and that during the thickness the central is less half a class than the lateral.

薄板坯的晶粒度的大致范围在4～5级，其中在厚度方向上薄板坯中心部位晶粒度比侧部小半个等级。

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The grain size grade is about 4-5 class, and that during the thickness the central is less half a class than the lateral.

薄板坯的晶粒度的大致范围在4～5级，其中在厚度方向上薄板坯中心部位晶粒度比侧部小半个等级。

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