Upper-roll fixed, the two rollers under a fixed turn around the center arc movement take-off and landing, under two separate movements can roll up or down with.
上辊固定,两下辊围绕一固定回转中心做弧线升降运动,两下辊可单独升降或同升同降。
Upper-roll fixed, the two rollers under a fixed turn around the center arc movement take-off and landing, under two separate movements can roll up or down with.
上辊固定,两下辊围绕一固定回转中心做弧线升降运动,两下辊可单独升降或同升同降。
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