用于防护电离辐射的50 mm和100 mm厚墙的铅屏蔽构件
Lead shielding units for 50 and 100 mm thick walls used for protection against ionizing radiation
标准状态
发布于：1990-01-12
实施于：1990-08-01
废止
基本信息
内容预览
Lead shielding units for 50 and 100 mm thick walls used for protection against ionizing radiation