Home / Standards / GB/T 45767-2025 GB/T 45767-2025 Active Silicon nitride ceramic subtrates 氮化硅陶瓷基片 Standard Type GBT ICS 81.060.30 CCS Q32 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A