Home / Standards / GB/T 30855-2014 GB/T 30855-2014 Active GaP substrates for LED epitaxial chips LED外延芯片用磷化镓衬底 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