Home / Standards / GB/T 29055-2019 GB/T 29055-2019 Active Multicrystalline silicon wafers for photovoltaic solar cell 太阳能电池用多晶硅片 Standard Type GBT ICS 29.045 CCS H82 Status 现行 Issue Date 2019-06-04 Implementation 2020-05-01 Responsible Dept 国家标准委 Drafting Unit N/A