Home / Standards / GB/T 10922-2025 GB/T 10922-2025 Active Gauges for pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads 55°非密封管螺纹量规 Standard Type GBT ICS 17.040.30 CCS J42 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A