Home / Standards / GB/T 12370-2025 GB/T 12370-2025 Active Bevel and hypoid gears—Terminology 锥齿轮和准双曲面齿轮 术语 Standard Type GBT ICS 21.200 CCS J17 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A