Home / Standards / GB/T 5238-2009 GB/T 5238-2009 Abolished Monocrystalline germanium and monocrystalline germanium slices 锗单晶和锗单晶片 Standard Type GBT ICS 77.120.99 CCS H66 Status 废止 Issue Date 2009-10-30 Implementation 2010-06-01 Responsible Dept 国家标准委 Drafting Unit N/A