RongSheng Copper Co., Ltd.
was established in Oct.2002,lacated in Qidong city in the neighboring north ShangHai,with the registered capital 3,000,000RMB. The former enterprise was Qidong accurate glasses fitting factory which established in Qct 1997.Over the last decade,we've vigorously developed into a company with a total area of 13000 sqm,it has a work plant of 5000sqm. Our staffs take it a pride to work for such a thriving company.
Basic knowledge of metal materials
The development of human civilization and the progress of society are closely related to metal materials. After the Stone Age, the Bronze Age and the Iron Age were marked by the application of metal materials. In modern times, a wide variety of metal materials have become an important material basis for the development of human society.
Is TPE the raw material of choice for eyewear accessories?
There are many kinds of glasses frame materials on the market. Thermoplastic elastomer TPE/TPR is one of the common materials. There are TPEE or TPU materials on the market to make glasses accessories. Each material has its own advantages and disadvantages.