Home / Standards / GB/T 3351-1982 GB/T 3351-1982 Active Designations for synthetic quartz crystals 人造石英晶体的型号命名 Standard Type GBT ICS 31.020 CCS L18 Status 现行 Issue Date 1982-12-27 Implementation 1983-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A