What is the application certificate provided by the 23-year patent of high-tech building specialty?

Certificate. Application certificate is a kind of certificate, which can be used to prove one's identity, qualification, income, property, education, marital status and other information. It is necessary to provide a patent application certificate for high-tech buildings. With this certificate, the applicant can get some services, such as applying for residence permit, participating in specific activities and applying for marriage.