Group 1 - The company has not yet engaged in direct business cooperation with Shenzhen Tuozhu Technology Co., Ltd [1] - Currently, the company's products are only used in industrial-grade 3D printing equipment, with revenue from this segment accounting for less than 2% of the company's total revenue in 2024 [1] - Products aimed at the consumer-grade 3D printing market are still in the research and development stage [1]