美利体育登录入口官网:UNE-EN ISO 6149-1:2020
连接用于液压流体动力和通用用途的接口及螺柱端口与ISO 261公制螺纹及唇形密封圈密封 第1部分:带有唇形密封圈密封的截锥型安装孔(ISO 6149-1:2019)
Connections for hydraulic fluid power and general purpose fittings and stud ports with ISO 261 metric threads and lip seals - Part 1: Truncated cone-shaped mounting holes with lip seals (ISO 6149-1:2019)