Home / Standards / YC/T 228-2007 YC/T 228-2007 Active 工件棱边和棱角 Standard Type YC ICS N/A CCS N/A Status Active Issue Date 2007-07-05 Implementation 2007-09-01 Centralized Committee 国家烟草专卖局 Issuing Authority 国家烟草专卖局