JT T 1196-2018 《邮件民航运输交接操作要求》.pdf

相关资源

JY T 0541-2022 流体压强与流速关系演示器通用要求.pdf

JY T 0539-2022 气体做功内能减少演示器.pdf

JY T 0536-2022 绳波演示器.pdf

JY T 0535-2022 玻意耳定律演示器.pdf

JY T 0528-2022 惯性演示器通用要求.pdf

JY T 0533-2022 教学用频闪光源.pdf

JY T 0527-2022 教学用单摆.pdf

JY T 0531-2022 轴承模型.pdf

JY T 0532-2022 反冲运动演示器通用要求.pdf

JY T 0537-2022 共点力的合成分解演示器.pdf

猜你喜欢

NBN-EN 144-1-1991 1875 Respiratory protective devices - Gas cylinder valves - Thread connection for insert connector《呼吸防护装置 毒气筒阀门 用于插接器的螺纹连接》.pdf

NBN-EN 145-1991 5000 Respiratory protective devices - Self-contained closed-circuit breathing apparatus compressed oxygen type - Requirements testing marking《呼吸防护装置 带压缩氧气的自持式闭路呼吸装置.pdf

NBN-EN 145-2-1993 3750 Respiratory protective devices Self-contained closed-circuit compressed oxygen breathing apparatus for special use Requirements testing marking《呼吸防护装置 特殊用途的带.pdf

NBN-EN 146-1992 6250 Respiratory protective devices - Powered particle filtering devices incorporating helmets or hoods - Requirements testing marking《呼吸防护装置 含有头盔和面罩的微粒过滤器 要求；试验；标示.pdf

NBN-EN 147-1992 5000 Respiratory protective devices - Power assisted particle filtering devices incorporating full face masks half masks or quarter masks - Requirements testing mar.pdf

NBN-EN 148-1-1989 8125 Respiratory protective devices - Threads for facepieces - Standard thread connection《呼吸防护装置 面罩连接用螺纹 标准螺纹连接》.pdf

NBN-EN 148-2-1989 6875 Repiratory protective devices-Threadsforfacepieces - Centre thread connection《呼吸防护装置 面罩连接用螺纹 中央螺纹连接》.pdf

NBN-EN 148-3-1992 5000 Respiratory protective devices Threads for facepieces Thread connection M 45 x 3《呼吸防护装置 面罩连接用螺纹 螺纹连接M 45 x 3》.pdf

NBN-EN 149-1991 1875 Respiratory protective devices - Filtering half masks to protect against particles - Requirements testing marking《呼吸防护装置 防护微粒的过滤半遮面罩要求；试验；标示》.pdf