法兰及其接头。PN指定法兰用垫圈的尺寸。第3部分：非金属聚四氟乙烯封装垫圈。
Flanges and their joints. Dimensions of gaskets for PN-designated flanges. Part 3: non-metallic PTFE envelope gaskets.
定制的装置与设备配合，它可以是薄片，封装零件，或连接器的模块，都能安装到RI接头上。
Custom fixtures adapt the devices, which can be wafer, packaged parts, or connectorized modules, to the RI universal interface.
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