Home / Standards / GB/T 14211-2019 GB/T 14211-2019 Active Test method of mechanical seal 机械密封试验方法 Standard Type GBT ICS 21.140 CCS J22 Status 现行 Issue Date 2019-10-18 Implementation 2020-09-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A