At 9:00 a.m. on December 1, the company carried out the annual occupational disease health checkup to protect the health of employees. This time, four departments participated in the medical checkup, including one department of intellectual property, two departments of intellectual property, mold processing department, and the material control center, with a total of 84 employees. Under the arrangement of the responsible personnel of the Administration Department, the employees of each department came to the medical checkup site in an orderly manner for checkup.

Occupational diseases refer to the diseases caused by the exposure of workers to factors such as dust, radioactive substances and other toxic and hazardous substances in their occupational activities. China's occupational diseases present five major characteristics, which are: 1) the number of people exposed to occupational disease hazards is large, and the number of illnesses is large; 2) occupational disease hazards are widely distributed in the industry, and small and medium-sized enterprises are seriously jeopardized; 3) occupational disease hazards are highly mobile and the transfer of hazards is serious; 4) occupational diseases are characterized by invisibility and delayed-onset, and the hazards are often neglected; and 5) occupational diseases and hazards cause huge economic losses, and have a long-lasting impact. Therefore, it is urgent to strengthen the prevention of occupational diseases and protection of employees' health.