Home / Standards / GB/T 3464-2025 GB/T 3464-2025 Upcoming Machine and hand taps 机用和手用丝锥 Standard Type GBT ICS 25.100.50 CCS J41 Status 即将实施 Issue Date 2025-10-31 Implementation 2026-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A