Home / Standards / GB/T 17315-2011 GB/T 17315-2011 Active Operation rules for maize seed production 玉米种子生产技术操作规程 Standard Type GBT ICS 65.020.20 CCS B21 Status 现行 Issue Date 2011-12-30 Implementation 2012-04-01 Responsible Dept 农业农村部 Drafting Unit 农业农村部