Home / Standards / GB/T 30866-2014 GB/T 30866-2014 Abolished Test method for measuring diameter of monocrystalline silicon carbide wafers 碳化硅单晶片直径测试方法 Standard Type GBT ICS 29.045 CCS H83 Status 废止 Issue Date 2014-07-24 Implementation 2015-02-01 Responsible Dept 国家标准委 Drafting Unit N/A