Home / Standards / GB/T 13841-1992 GB/T 13841-1992 Active Surface roughness for electronic ceramic parts 电子陶瓷件表面粗糙度 Standard Type GBT ICS N/A CCS L92 Status Active Issue Date 1992-12-28 Implementation 1993-08-01 Centralized Committee 工业和信息化部(电子) Issuing Authority 国家技术监督局