Your question is very unprofessional. Wedding, seemingly just two words, has a lot of content. For example, wedding candy, happy characters, colorful flowers, wedding photos, dresses, drinks, hotels, lighting, video photography, motorcades, etiquette, etc. all belong to the wedding market. Which one do you want to ask? There are also individual packages and overall packages. To put it bluntly, the source of profits is buying and selling, but individual projects can be intermediate kickbacks. If you want someone to answer in detail, you'd better ask questions in detail first.