Zhejiang Challenge & Intelligent Technology Co., Ltd. has independently developed particle extrusion 3D printing equipment and high-performance fiber reinforced composite materials, forming a complete set of technologies including materials, equipment, and processes. The company has formed a series of products with precise flow control 3D printing equipment, high-temperature 3D printing equipment, robot assisted 3D printing equipment, ultra large 3D printing equipment, and other functions. We have multiple independent intellectual property rights, including invention patents, software copyrights, trademarks, etc. 3D printing around granular materials has been applied in various fields such as aerospace, automotive manufacturing, composite molds, and medical devices.