中文名:逆流防止阀
英文名:Backwater Valves
中文名:统一微型螺纹
英文名:Unified Miniature Screw Threads
中文名:统一微型螺纹
英文名:Unified Miniature Screw Threads
中文名:统一微型螺纹
英文名:Unified Miniature Screw Threads
中文名:可接受尺寸的螺纹测量系统.英制和米制螺纹(UN、UNR、UNJ、M和MJ)
英文名:Screw Thread Gaging Systems for Acceptability:Inch and Metric Screw Threads (UN,UNR,UNJ,M,and MJ)
中文名:带有螺纹啮合0.6间距基本高度的锯齿英制螺纹(7度/45度)形状
英文名:Buttress Inch Screw Threads 7 Degrees/45 Degrees Form with 0.6 Pitch Basic Height of Thread Engagement
中文名:铸铁螺纹连接排水管件
英文名:Cast Iron Threaded Drainage Fittings
中文名:苏汶特排水系统中铸铁配件
英文名:Cast Iron Fittings for Sovent Drainage Systems
中文名:压力释放装置性能试验规范
英文名:Pressure Relief Devices
中文名:与安全相关的自力和电动操作阀门
英文名:Self-Operated and Power-Operated Safety-Related Valves Functional Specification Standard, Reactor Plants and Their Maintenance