Home / Standards / GB/T 777-1985 GB/T 777-1985 Abolished Analogue pneumatic signal for industrial process measurement and control instruments 工业自动化仪表用模拟气动信号 Standard Type GBT ICS 17.100 CCS N10 Status 废止 Issue Date 1985-04-03 Implementation 1986-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A