Home / Standards / GB/Z 40992-2021 GB/Z 40992-2021 Active General technical condition for electronic communication devices for people with speech disorder 言语障碍者用电子沟通板通用技术条件 Standard Type GBZ ICS 11.180 CCS C45 Status 现行 Issue Date 2021-11-26 Implementation N/A Responsible Dept 民政部 Drafting Unit N/A