Home / Standards / GB/T 22772-2008 GB/T 22772-2008 Active Mechanical clocks with pendulum 机械摆钟 Standard Type GBT ICS 39.040.20 CCS Y11 Status 现行 Issue Date 2008-12-30 Implementation 2009-09-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A