Home / Standards / GB/T 27721-2011 GB/T 27721-2011 Active Calculation method of energy equilibrium and energy efficiency in stone ground wood system 磨石磨木浆系统能量平衡及能量效率计算方法 Standard Type GBT ICS 85.010 CCS Y30 Status 现行 Issue Date 2011-12-30 Implementation 2012-07-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会