Home / Standards / GB/T 10922-2006 GB/T 10922-2006 Abolished 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 21.040.10 CCS J42 Status 废止 Issue Date 2006-02-05 Implementation 2006-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A