According to the requirements of the book block, the book case calender makes the middle part of the book case into an arc-shaped device to meet the needs of the book block upper shell after rounding and ridging
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According to the requirements of the book block, the book case calender makes the middle part of the book case into an arc-shaped device to meet the needs of the book block upper shell after rounding and ridging; It is widely used in hardcover round spine books and notebooks. It drives the mold to work through the air cylinder. It can achieve the best effect by adjusting the cylinder stroke, pressure and time.
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