Home / Standards / GB/T 25777-2010 GB/T 25777-2010 Active Preparation methods for deposited metal specimens of chemical analysis 焊接材料熔敷金属化学分析试样制备方法 Standard Type GBT ICS 25.160.20 CCS J33 Status 现行 Issue Date 2010-12-23 Implementation 2011-06-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委