Home / Standards / GB/T 24767-2009 GB/T 24767-2009 Active The gravity heat pipe for solar application 太阳能重力热管 Standard Type GBT ICS 27.160;77.140.75 CCS H48 Status 现行 Issue Date 2009-12-15 Implementation 2010-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A