The Group carried out occupational disease health examinations for migrant workers. Since some employees have been exposed to dust, noise, high temperature and other environments for a long time, in addition to the routine items, the physical examination also checked the chronic attenuation of lung function, hearing damage of ear organs and nervous system function caused by environmental factors of the post. Sexual damage, etc., and also check whether the employees have other occupational contraindications that do not meet the requirements of the current job.