Next time you zip up, or zip down, check out your zipper. There’s a good chance it’ll say YKK. But, what is YKK? I head to South Gate, California, to find out. At Koos Manufacturing in South Gate, ...
"Mom/Dad, my zipper's stuck!" The days of your parents coming to the rescue during zipper catastrophes are over. More than likely, it's now you who's doing the rescuing. As long as you haven't ...
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