Home / Standards / GB/T 6403.4-2008 GB/T 6403.4-2008 Active Rounding and chamfer of parts 零件倒圆与倒角 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