Home / Standards / GB/T 4823-2013 GB/T 4823-2013 Active Defects in sawn timber 锯材缺陷 Standard Type GBT ICS 79.040 CCS B69 Status 现行 Issue Date 2013-11-12 Implementation 2014-04-11 Responsible Dept 国家林草局 Drafting Unit N/A