Cold work is also called riveting, and some people vividly say that it is an "iron tailor." The job is to put all kinds of profiles. Make the plate into products according to the drawings and technical requirements. This work is very hard and laborious, so you should be mentally prepared. Culture class requires junior high school algebra and geometry to learn well. Basic courses such as mechanical drawing, materials and heat treatment must be paid attention to, followed by specialized courses such as unfolding, lofting and blanking. Calibration, molding and assembly should be carefully studied. Also, because it is related to welding, it requires certain welder technical knowledge and operating skills. Moreover, this type of work is practical and will encounter various problems in the specific operation. We must be flexible and pay attention to practical experience. Therefore, there is a saying in the riveting industry that "the riveter is old and the welder is young". In a word, this is a highly technical [top senior technician].