Home / Standards / GB/T 23230-2009 GB/T 23230-2009 Active Fast growing and high yield plantation of batula platyphylla suk. 白桦速生丰产林 Standard Type GBT ICS 65.020.40 CCS B64 Status 现行 Issue Date 2009-02-23 Implementation 2009-08-01 Responsible Dept 国家林草局 Drafting Unit N/A