Dalian Tianyuan Industrial Co., Ltd. was established in 1998 by Taiwan’s TYC Group, which was founded in 1955. To date, TYC Group has over sixty years of experience in manufacturing precision transmission roller chains, renowned for its reputation and quality. It is Taiwan’s largest specialized manufacturer of precision transmission chains. ， The company boasts a strong R&D team and advanced mold manufacturing equipment. Several of its chain production technologies are world-leading. The company is capable of producing various U.S.-standard products. ， Over 400 chain specifications compliant with European standards ， With chains and accessories, we can produce nearly 4,000 different product types. The tensile strength and fatigue strength of our products both exceed international standards by more than 20%. We currently have a headquarters plant in Dalian and a factory in Taiwan. 、 Thai factory.