Home / Standards / GB/T 11450.1-1989 GB/T 11450.1-1989 Active Hollow metallic waveguides--Part 1:General requirement and measuring methods 空心金属波导 第一部分:一般要求和测量方法 Standard Type GBT ICS 33.120.10 CCS L26 Status 现行 Issue Date 1989-06-22 Implementation 1990-03-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A