শিল্প খবর
06 2025-11 একটি রজন জিপার কি?
Resin zippers, as one of the three mainstream types of zippers (metal, nylon, and resin), have the core feature that the chain teeth are made of synthetic resin through injection molding.
06 2025-11 একটি ক্ষুদ্র বিপ্লব যা জীবনকে সংযুক্ত করে
In modern life, there is a seemingly insignificant yet ubiquitous invention that has profoundly changed our daily lives - the nylon zipper.