Home / Standards / GB/T 8542-1987 GB/T 8542-1987 Abolished Spcification for turbine gearings 透平齿轮传动装置技术条件 Standard Type GBT ICS 21.200 CCS J17 Status 废止 Issue Date 1987-12-25 Implementation 1988-10-01 Responsible Dept 国家标准委 Drafting Unit N/A