Central enterprises, referred to as "centrally managed enterprises", occupy a dominant position in major industries and key areas related to national security and the lifeline of the national economy, and are an important pillar of the national economy. According to the authority of state-owned assets management, state-owned enterprises are divided into central enterprises (state-owned enterprises supervised and managed by the central government) and local enterprises (state-owned enterprises supervised and managed by local governments). The requirement of enterprise recruitment is often to have certain work experience. Because companies want employees recruited by institutions to come to work directly.