Xinjinghe's metal 3D printing technology is deeply empowering the commercial aerospace sector, achieving manufacturing goals of high efficiency, speed, quality, and cost savings. The company provides full-chain printing services for Deep Blue Aerospace's rocket engines, using LiM-X series equipment to successfully produce key components in superalloy (GH4169) with single-part dimensions of 450mm×350mm×250mm, significantly enhancing efficiency and reducing costs. To meet the trend of larger rockets, Xinjinghe offers two-meter-scale forming capabilities; the LiM-X2000H+ system can be equipped with 55 lasers, enabling one-piece forming of complex structures like 1470mm-diameter stator ring arrays in just 240 hours. For lightweighting, lattice structure designs reduce satellite node ball weight by 40% and costs by 30%. Multi-process combination solutions achieve composite manufacturing of copper alloys and superalloys to meet extreme operating conditions. This technology has been validated in major national projects including 'Tianwen-1' and the next-generation crew spacecraft, and is now accelerating its deployment in commercial aerospace, driving a transition toward highly reliable, low-cost, and fast-response manufacturing models.