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

A worker is seen on the production line of steel components for pen tips at Taiyuan Iron and Steel (Group), or TISCO, in Taiyuan, north China's Shanxi Province, Jan. 10, 2017. 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)