Home / Standards / GB/T 21399-2008 GB/T 21399-2008 Active Evaluating rule of automatic control system for grain driers 粮食干燥机自动控制系统评定规则 Standard Type GBT ICS 65.060.99 CCS B91 Status 现行 Issue Date 2008-02-03 Implementation 2008-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A