Home / Standards / GB/T 4725-2022 GB/T 4725-2022 Active Epoxide woven glass fabric copper-clad laminated sheets for printed circuits 印制电路用覆铜箔环氧玻纤布层压板 Standard Type GBT ICS 31.180 CCS L30 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A