Home / Standards / GB/T 29155-2012 GB/T 29155-2012 Active Transparent jadeite(colorless)grading 透明翡翠(无色)分级 Standard Type GBT ICS 39.060 CCS D59 Status 现行 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 自然资源部(国土) Drafting Unit N/A