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传统钉扣机，一机一花型。本机内存多种花型，可以适用各种钮扣的孔型，特种钮孔可以自行编制。
There are more sewing patterns in the memory than the traditional machine with just one pattern. Fit for diff erent types of button holes and editing new special type. |
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因增加带有底线结构，钮扣不容易脱线，是中、高档产品必备机型
Add bottom thread to fix the button .It is necessary for the moderate and high class ptoducts |
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配备机械式和电子夹线器功能（电子夹线器，线迹调节更方便）。
Adopt mechanical and electronic thread tension device function.make the adjustment of thread trace more convenient. |
