zipper from the initial metal materials to non-metallic materials, single species single F
Function to more varieties of multi-standard integrated function development, from simple to today's delicate and beautiful, colorful
In 1851, the United States Elias Howe applied for a similar zipper design patent zipper development history With the development of human social economy and science and technology, zipper from the initial metal materials to non-metallic materials, single species single
