Home / Standards / GB/T 28770-2012 GB/T 28770-2012 Active Test methods for solders 软钎料试验方法 Standard Type GBT ICS 25.160.50 CCS J33 Status 现行 Issue Date 2012-11-05 Implementation 2013-03-01 Responsible Dept 国家标准委 Drafting Unit N/A