Water is also used as a coolant for rolling - mill roll to maintain their contour and lengthen their service life.

热轧机的轧辊也需用冷却水来保持轧辊的外形和延长它的使用寿命。

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Water is also used as a coolant for rolling - mill roll to maintain their contour and lengthen their service life.

热轧机的轧辊也需用冷却水来保持轧辊的外形和延长它的使用寿命。

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