美利体育登录入口官网:BS EN ISO 6149-4:2017 流体动力和一般用途的连接 端口和螺柱端部采用 ISO 261 公制螺纹和 O 形圈密封 外六角和内六角端口插头的尺寸、设计、测试方法和要求
Connections for fluid power and general use. Ports and stud ends with ISO 261 metric threads and O-ring sealing. Dimensions, design, test methods and requirements for external hex and internal hex port plugs