New method of zipper welding

Name: New method of zipper welding
Uploaded: 2017-03-08T00:00:00.000Z
Description: This video is introduce of 'New method of zipper welding'. This method is superior strength adhesion. and doesn`t need any special machine.

This video is introduce of 'New method of zipper welding'. This method is superior strength adhesion. and doesn`t need any special machine.

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