In 2017, Bosu Corporation (roll dealer) established a strategic partnership with Okaka Rubber Industry Co., LTD. Founded in 1924, Japan's Ao Gao, in response to the requirements of technological change from the metallurgical industry, has successfully researched and developed many star products, and currently Japan's domestic steel companies use industrial roller market, monopolizing more than 60% of the market share. Baosu Weigao jointly developed acid and alkali resistant ultra-wear-resistant extrusion roll, L liquid treatment roll, high temperature electrolytic tank sinking roll has achieved amazing results in domestic use.