It is suitable for small batch production of workpiece, such as zipper head and screws and processing.

适合于细小工件的批量生产，如拉链头、螺丝等加工。

youdao

This tester is used to measure the torsion resistance of zipper head , in order to be the reference of product improvement.

本机系用来测试拉链头的扭力强度，作为品质改良的参考依据。

youdao

When the zipper of the slipper is zipped, the head of the slipper is enclosed, the slipper can keep warming when in wearing and the slipper is suitable for use in winter.

把拖鞋的拉链拉上之后，拖鞋头部封闭，穿着时非常保暖，适合冬天使用。

youdao

This model does three things very well that address all my concerns: it stays balanced while rolling, it is much, much easier to load and unload thanks to a zipper that goes all the way around the head of the clubs so it opens more like a book, and it has an awesome set of retractable legs that make it into a four wheeler.

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