Home / Standards / GB/T 31471-2015 GB/T 31471-2015 Active General specification for metal foil for printed circuits 印制电路用金属箔通用规范 Standard Type GBT ICS 31.180 CCS L30 Status 现行 Issue Date 2015-05-15 Implementation 2016-01-01 Responsible Dept 国家标准委 Drafting Unit N/A