About us

About us

Seih-Ying Co., Ltd.- The glass road stud supplier

Seih-Ying’s strengths and characteristics:

- Established in 1990; 28-year experience in the industry. 

- 85% market share in Taiwan. 

- World’s highest compressive resistance (over 60 tons) and impact resistance.

- Largest production capacity with various types of products.

- Exported to more than 60 countries.




Seih-Ying is a professional company with the most technological innovation capabilities, who holds inventions and patents of many countries. Most of current manufacturers of glass road studs and solar glass road studs are using patents (including those for previous-generation technology) and production technologies of Seih-Ying.

Those YELLOW glass road studs of other brands are mostly made of transparent ones by color painting and reflective mirror processing on the bottom of glass road studs – Seih-Ying has applied for patents for the said proprietary technology of several major countries in 1991. The problem is, these plagiarized manufacturers don’t have a satisfying technology level, and the painted color on their glass road studs could only last for 6 months to 2 years, then it starts to fade and lose its reflectivity – that’s why Seih-Ying has given up that production method more than 20 years ago.

Now, there are some Chinese manufacturers declaring that they own China utility model patents for glass and solar glass road studs. After analyzing those patents, we found that they are all Taiwan expired patents re-applied for China patents and got proved. The applicants of the said China patents include 1 or 2 Taiwanese, and even a professor of university. Since Seih-Ying is the holder of the said Taiwan patents, we would file invalidation proceedings for each of the said China utility model patents if needed. And don’t forget: those so-called-patents are evidence of deceiving acts.

Also, some Taiwanese manufacturers defrauded only part of Seih-Ying's proprietary technology and went start up joint venture in China. Their products get certificates through illegal "sample processing" method and the quality were exaggerated. In other words, their test reports were not trust-worthy at all.

Furthermore, Seih-Ying has completed a lot of projects all over the world and accumulated many project photos. However, many Chinese companies took our photos without asking for permission and used in their catalogs and online advertisement.

In conclusion, traffic safety products are to reduce traffic accidents and to benefit road users. We are all doing good deeds. Meanwhile, we hope the said companies could respect intellectual property of others.

We hereby solemnly declare that in the past 28 years, all our proprietary production technology of SIGLITE glass road studs and solar glass road studs are developed on our own. And we have NEVER co-developed with any other companies.