Job requirements for freighters:
1: Male, aged from 16 to 40, no criminal record
2. Healthy, no infectious disease, no history of mental illness, no history of hepatitis, no chronic disease
3. No mental history, good health, no chronic diseases, no stuttering, no acid, normal vision and hearing. No obvious scar, birthmark, rash, body rash, tattoo and pigment were found on the exposed part of face and body