The annual salary is about 50,000 yuan, the working environment is neat and generous, there are birthday benefits and transportation subsidies for employees, the working hours are reasonable, the geographical location is superior, overtime is not compulsory, and five insurances and one gold will be paid according to law. In China, many state-owned enterprises and institutions use staffing to manage personnel. However, with the progress of society, the original staff can't undertake the existing work, so many people who can't join the staff are hired, and these people can't enjoy the treatment and benefits that the staff should have, just like doing odd jobs. Such people are called supernumeraries.