Home / Standards / GB/T 1566-2003 GB/T 1566-2003 Active Square and rectangular thin keyways 薄型平键 键槽的剖面尺寸 Standard Type GBT ICS 21.120.30 CCS J18 Status 现行 Issue Date 2003-06-05 Implementation 2004-02-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委