The backup roll chock is one of the key and important parts of the rolling mill.
支承辊轴承座是轧钢机上的关键零件之一，也是重要零件和加工周期长、难度大、精度要求很高的零件。
The backup roll chock is one of the key and important parts of the rolling mill. It has a long machining duration and the accuracy of the machining is very high.
支承辊轴承座是轧钢机上的关键零件之一，也是重要零件和加工周期长、难度大、精度要求很高的零件。
The backup roll chock is one of the key and important parts of the rolling mill. It has a long machining duration and the accuracy of the machining is very high.
支承辊轴承座是轧钢机上的关键零件之一，也是重要零件和加工周期长、难度大、精度要求很高的零件。
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