Home / Standards / GB/T 31731-2015 GB/T 31731-2015 Active General technical specifications of recovering for waste musical instruments 废弃乐器回收利用通用技术规范 Standard Type GBT ICS 97.200.20 CCS Y58 Status 现行 Issue Date 2015-06-02 Implementation 2016-01-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A