This applies to the major sewing machine-like embossing ,Pillar base Zigzag Sewing Machine,Hu Zhuang , and other forms of sewing  

Pillar base Zigzag Sewing Machine

This applies to the major sewing machine-like embossing ,the pocket ,Hu Zhuang , and other forms of sewing have a special 2:00 optional 3.4 points.

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Pillar base Zigzag Sewing Machine