用于防护电离辐射的50mm和100mm厚墙的铅屏蔽构件
Lead shielding units for 50mm and 100mm thick walls used for protection against ionizing radiation
标准状态
发布于：2026-04-30
实施于：2026-11-01
废止
Lead shielding units for 50mm and 100mm thick walls used for protection against ionizing radiation