Welding is an operation that requires high operating skills. There are harmful factors such as arc radiation, metal fumes, harmful gases, high-frequency electromagnetic fields, rays and noise in welding work. Therefore, we must pay attention to safety during work. The operators must be electric welders who have passed the professional training and examination of electric and gas welding, and have obtained the special operation certificate, and hold the certificate (within the validity period). Operators must pass the safety education of the project department and pass the assessment before they can work.
