有研粉材：目前公司销售的3D打印粉体材料主要应用于军工、商业航天等领域

Group 1 - The core viewpoint of the article highlights that the company, Youyan Powder Materials, is actively expanding its sales of 3D printing powder materials into both military and commercial aerospace sectors, while also targeting the civilian market [1] Group 2 - The company has successfully covered various niche applications in the civilian market, including shoe molds, molds, and prototypes [1]