Home / Standards / GB/T 30854-2014 GB/T 30854-2014 Active Gallium nitride based epitaxial layer for LED lighting LED发光用氮化镓基外延片 Standard Type GBT ICS 29.045 CCS H83 Status 现行 Issue Date 2014-07-24 Implementation 2015-04-01 Responsible Dept 国家标准委 Drafting Unit N/A