DS/EN ISO 9974-2:2001
一般用途和流体动力连接件 带 ISO 261 螺纹的端口和螺柱端,带弹性密封或金属对金属密封 第2部分:带弹性密封的螺柱端(E 型)
Connections for general use and fluid power - Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing - Part 2: Stud ends with elastomeric sealing (type E)