Home / Standards / GB/T 12963-2022 GB/T 12963-2022 Active Electronic-grade polycrystalline silicon 电子级多晶硅 Standard Type GBT ICS 29.045 CCS H82 Status 现行 Issue Date 2022-12-30 Implementation 2023-07-01 Responsible Dept 国家标准委 Drafting Unit N/A