| Advantages︰ | The patent awarded design, adjustable micro stitch length dial, it can adjust to follow the zipper pitch when the machine operation.
The Special Two-in-One Puller and Press Foot Lefter which can left the puller alone or left all of them together to save the time.
The Looper Shaft move in ellipse to decrease needle burning.
The adjustable Needle.
The adjustable Looper holder make the threading esay.
The Looper Thread Take-up can make it up and down for threading easy.
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