【金牌纪要库】3D打印在商业火箭发动机制造领域渗透率陡增，可大幅降低重量、成本和制作时长

Group 1 - The core viewpoint of the article emphasizes the significant advancements in the commercial rocket engine manufacturing sector through the adoption of 3D printing technology, which can greatly reduce weight, costs, and production time [1] - The article highlights that consumables are a major constraint for the large-scale application of 3D printing technology, with high technical barriers supporting the industry's high gross margins [1] - The consumer-grade 3D printing market is dominated by TuoZhu, which holds the highest market share, and the listed company provides OEM services for TuoZhu [1]