Home / Standards / GB/T 39232-2020 GB/T 39232-2020 Active Zirconia ceramics knife 氧化锆日用陶瓷刀 Standard Type GBT ICS 81.060.30 CCS Q32 Status 现行 Issue Date 2020-11-19 Implementation 2021-10-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A