Home / Standards / GB/T 7940.1-2008 GB/T 7940.1-2008 Active Pneumatic fluid power - Five-port directional control valves - Part 1: Mounting interface surfaces without electrical connector 气动 五气口方向控制阀 第1部分：不带电气接头的安装面 Standard Type GBT ICS 23.100.50 CCS J20 Status 现行 Issue Date 2008-06-25 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A