Home / Standards / GB/T 31559-2015 GB/T 31559-2015 Active Collets for tool holders with taper ratio 1:10—Collets,holders,nuts 工具柄用1:10锥柄的弹簧夹头 弹簧夹头,锥柄座,螺母 Standard Type GBT ICS 25.060.20 CCS J52 Status 现行 Issue Date 2015-05-15 Implementation 2016-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A