Core Insights - The article highlights the launch of a patented product, the elbow grinding rod, by Wuxi Kezhixin Machinery Technology Co., Ltd., which supports the localization of core components for humanoid robots [1] - The partnership between Kezhixin and Ningbo-based Shuanglin Co., Ltd. aims to address the bottleneck in the "thread grinding technology" essential for humanoid robots, with Shuanglin planning to fully acquire Kezhixin in 2024 [1][2] - Kezhixin's technology, particularly the reverse planetary roller screw, is crucial for the linear actuators in humanoid robots, and the newly released elbow grinding rod technology breaks the monopoly in internal thread grinding [2] Company Developments - Kezhixin's main product, the internal and external thread grinding machine, achieves C3-level grinding precision and is widely used in high-tech industries such as humanoid robots, automotive, and engineering machinery [2] - The company has received significant support from the Huishan Economic Development Zone, including a 13,000 square meter high-standard factory and favorable policies to reduce operational costs during the startup phase [2][3] - The project is expected to produce 540 high-precision CNC grinding machines annually, generating over 300 million yuan in revenue, and will promote the development of the core component industry for humanoid robots [3] Future Plans - The second phase of the project includes plans to acquire industrial land to create an intelligent manufacturing base that integrates high-end workshops and R&D buildings, further enhancing collaboration between humanoid robot components and high-end equipment industries [3]