internal pipe meaning in Chinese
内管
Examples
- Needle valves have nps / internal pipe threaded ends
针形阀配置nps内管螺纹连接端口。 - The 995 can be used in a variety of installations , including health hazard cross - connections in internal piping systems and for containment at the service line entrance
995系列可以用于各种安装，包括用于封堵接户管线进口的内部管线系统中的健康危害交叉连接。