The traffic police brigade of Huadu District Branch of Guangzhou Public Security Bureau is a unit, not an enterprise. Enterprise information is generally provided by the enterprise credit information publicity system, which only contains the information of legal entities, individual industrial and commercial households and other economic organizations, and the units are not within its scope. However, companies can also issue invoices. In order to be able to display the header on documents, it is necessary to select the relevant invoice institutions, and the invoices can only be issued under the header of the company after going through the procedures of review and filing. Expand knowledge: invoices refer to vouchers issued by enterprises or other organizations, such as paying taxes and settling goods and services transactions, to show that payment obligations have been completed, mainly including ordinary invoices and electronic invoices.