Home / Standards / GB/T 37462-2019 GB/T 37462-2019 Active Locking threads with 30 degree wedge ramp 30°楔形防松螺纹 Standard Type GBT ICS 21.040.30 CCS J04 Status 现行 Issue Date 2019-05-10 Implementation 2019-12-01 Responsible Dept 国家标准委 Drafting Unit N/A