China's TISCO boasts research, development of high-tech stainless steel products

Photo taken on Jan. 10, 2017 shows ballpoint pen tips made of homemade stainless steel at Taiyuan Iron and Steel (Group), or TISCO, in Taiyuan, north China's Shanxi Province. As a leading stainless steel maker, TISCO boasted research and development of high-tech stainless steel products by large efforts on innovation. So far TISCO possesses over 2,700 authorized patents, including 772 patents for invention. (Xinhua/Cao Yang)