Home / Standards / GB/T 39141.3-2022 GB/T 39141.3-2022 Active Mineral and sapphire watch-glasses—Part 3：Qualitative criteria and test methods 无机和蓝宝石手表玻璃 第3部分：定性标准和试验方法 Standard Type GBT ICS 39.040.10 CCS Y11 Status 现行 Issue Date 2022-10-14 Implementation 2023-05-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A