Jiaozuo Changxin Technical Development Of Radiation Protection Co., Ltd. has a lot of professional and experienced technicians and senior engineers who have been engaged in lead glass for years.......
1. computer X-ray radiation from computer screens: This kind of radiation usually only needs on...MORE
Electromagnetic radiation is invisible, invisible and intangible. Some statements about electrom
1. Avoid running the computer continuously for a long time, paying attention to rest in the midd
1. If the conditions permit the first 3 months of pregnancy, do not touch the computer temporari