Home / Standards / GB/T 41490-2022 GB/T 41490-2022 Active Silicon nitride ceramics—Test method for rolling contact fatigue at room temperature—Balls-on-flat method 氮化硅陶瓷 室温下滚动接触疲劳试验方法 球板法 Standard Type GBT ICS 81.060.30 CCS Q32 Status 现行 Issue Date 2022-04-15 Implementation 2022-11-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A