Home / Standards / GB/T 41321-2022 GB/T 41321-2022 Active Test method for stiffness of self-supporting run-flat tyres 自体支撑型缺气保用轮胎刚度试验方法 Standard Type GBT ICS 83.160.10 CCS G41 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A