Beilin District. According to Baidu map, the intersection of Heping Road and Dongjie Street in Beilin District of Xi is about 50 meters southwest. Tongniu Underwear was established in 1997, engaged in the production and sales of knitted clothing products such as underwear, home, leisure, children's wear, and undertook processing and production businesses such as tooling group purchase, special figure customization and school uniform customization, and successfully developed astronaut high-tech space underwear.