Home / Standards / GB/T 21140-2017 GB/T 21140-2017 Active Non-structural finger jointed lumber 非结构用指接材 Standard Type GBT ICS 79.080 CCS B69 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 国家林草局 Drafting Unit N/A