How Kurobe, Japan, Became the Zipper Capital of the World - Atlas Obscura
About YKK / YKK FASTENING PRODUCTS GROUP
Why Do Most Zippers Say "YKK" on the Pull-tab? | HowStuffWorks
The $13 Billion Zipper Wars | BoF
YKK Zippers - Everything 47 / See what made the future
Inside The Global Zipper War - Worldcrunch
YKK - Wikipedia
Zipper Products | YKK - Fastening Products Group
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