2017年5月17日星期三

Inventions which may instead of zipper

It seems that there is always a need to open and close things repeatedly and quickly. The heavy duty zippers does a very good job of that, but there are other inventions designed to do the same thing.
Have you ever packed a lunch to take on a trip? You may have used a Ziploc bag to keep your sandwich fresh. Ziploc bags are made of plastic and have male and female sides that lock together. Originally, Ziploc bags had only one seal, but now many have two. The seals are very tight and can be waterproof. Try doing that with buttons!
Another invention you are probably familiar with is Velcro. Velcro is usually made from nylon and has two sides. One side is called the hook side (it looks like a forest made up of tiny mushrooms). The other side is called the loop side (it looks like chain stitching made from nylon threads). When you press the two sides together, the hooks and the loops lock together to fasten the material.

If you want to know more about gold metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung
Skype: tdysho
Wechat: jessicakung1017
Whats: 8613631458295

Email: uzipga@hotmail.com

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