▎ 摘　　要

NOVELTY - 3D printing product comprises multi-layer structure, each layer includes plurality of identical structural units that are regularly arranged and have a wave absorbing function, sides of any adjacent structural units intersected for structural units located on the same layer; the structural units of any two adjacent layers are same or different, and multiple structural units of any adjacent layer are staggered for structural units located on different layers; The structural unit is regular cavity structure with open bottom end, and top end surface and the bottom end surface are arranged in parallel, and the side surfaces and the two end surfaces are arranged at an included angle. The top surfaces of some of the structural units of the lower layer are connected to two, three or four structural units of upper layer. The structural unit is hollow truncated cone or prism. The structural unit is formed by 3D printing of thermoplastic material containing wave absorbing powder. USE - The 3D printing product is useful in military market. ADVANTAGE - The 3D printing product: has wave absorbing function; and provides feasibility for realizing the multi-directional stealth, multi-band stealth, high-energy stealth and material gradient design and manufacture of stealth material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the 3D printing product.