In recent years, with the adjustment of the national industrial structure and the advocacy of green energy-saving concepts in the construction industry, assembly building ushered in the east wind of development. As a change in the mode of production of the construction industry, assembly building is more in line with the concept of sustainable development. In the 13th Five-Year Plan of Action for Assembly Building, the state points out that by 2020, the proportion of assembly buildings in new buildings will reach more than 15%. As an important part of the assembly building, the integral bathroom is also the core product of housing industrialization. It is recognized as the development direction of the future bathroom industry and attracts more and more attention from all walks of life. Recently, China People's Radio and Voice of China have reported on the development of bathrooms in China.