The maintenance workers in Chengdu Longquan Hisense Factory are very tired. Longquan Hisense Refrigerator Factory is a private enterprise that mainly produces refrigerators. Its production scale is not large, and its development prospect is general. All kinds of production equipment are complete, and the workshop works in the way of assembly line. Because it is an assembly line, the next product flows down after finishing one product, and it is quite tiring to go to work for 11 hours all day.