Luoyang Sanlong Installation and Maintenance Co., Ltd. is a non-state-owned enterprise. It was restructured from a state-owned enterprise in 2005 and has become a private enterprise. The work items and content are mainly based on the maintenance and operation of the factory, supplemented by installation and maintenance; to put it bluntly, it is a tertiary industry unit and belongs to the service industry. Personal suggestion: College students who are not locals should not go there, as nepotism is serious due to the restructuring of state-owned enterprises. It is a medium-sized unit in its local area, and it is a good target except that it needs to be assigned to its outsourced project departments for at least one year every other year (its local recruitment targets are mostly college students and young people without academic qualifications). If you are being recruited, you must ask clearly about your mobility situation, and your long-term personal development must also consider settlement issues.