Home / Standards / GB/T 6403.1-2008 GB/T 6403.1-2008 Active Radii of sphere surfaces 球面半径 Standard Type GBT ICS 25.010 CCS J05 Status 现行 Issue Date 2008-09-27 Implementation 2009-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委