Home / Standards / GB/T 47398-2026 GB/T 47398-2026 Upcoming Test method for rotary joint 旋转接头试验方法 Standard Type GBT ICS 21.140 CCS J 22 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A