Home / Standards / GB/T 9532-2012 GB/T 9532-2012 Active Designations for piezoelectric crystals 压电单晶材料型号命名方法 Standard Type GBT ICS 31.140 CCS L21 Status 现行 Issue Date 2012-11-05 Implementation 2013-02-15 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A