Sun Island kitchen knife is a very famous local kitchen knife product in Lhasa, and its heat treatment and polishing process are also unique, which not only maintains hardness, but also does not anneal. Ranked among the best in many industry appraisals and won the title of quality products in Lhasa. Located near No.5-6, the facade of the new salon on Shiquan Road, Sun Island, its business scope includes handicraft knives, Tibetan knives (the Registration Certificate for Sales Control Knives is valid until 20 1 16+08), important local products (including Cordyceps sinensis) and department stores.

According to the data of official website, three sheng and three sheng kitchen knives are traditional brand-name products in Harbin. Founded in 1922, it was originally built by blacksmiths Kang, Wang Chundao and Kang Yexiu of Taigu Street, hence the name "three sheng Furnace". The kitchen knife is characterized by beautiful shape, no peeling, no rolling and no collapse, and good steel mouth. It is made of good steel, and imported steel has been selected before cooperation, and then the state supplies high-quality steel for tools.