Ningbo Shuanglin Auto Parts (300100.SZ) stated on the investor interactive platform that it is a professional smart manufacturing enterprise engaged in the research and development, manufacturing and sales of automobile parts. Its main products include automobile interior and exterior parts, precision parts, intelligent control system components, power systems, car rim bearings, ball screws, etc. In the field of ball screws, after fully investigating downstream customer needs and considering the homogeneity of car rim bearing and ball screw production technology, the company decided to enter the field of ball screw bearings for vehicles. In July 2023, the company launched the ball screw bearing unit project, initiated related research and development and manufacturing work, and plans to gradually develop from EHB brake ball screw bearings to EMB brake ball screws, steering ball screw bearings, and robot ball screw products. The company has already completed the manufacturing of ball screw samples for vehicles and plans to achieve mass production capacity (EHB brake ball screw bearings) by December 2024. In terms of robot ball screws, the company is also gradually making progress and has completed internal research and development projects. The company does not have any relevant business related to decelerators.