金盾股份：公司涵道风扇叶轮主要采用五轴加工确保型面加工精度

Group 1 - The company stated that its ducted fan impellers primarily utilize five-axis machining to ensure profile machining accuracy [1] - The ducted housings are produced using integrated casting to guarantee precision and efficiency [1] - During the research and development phase of prototype models, the company will employ high-strength metal additive manufacturing technology to achieve rapid iteration from design to validation, enhancing R&D efficiency [1] Group 2 - The company is closely monitoring the advancements in 3D printing technology and may consider adopting advanced technologies if there is a significant industry need [1]