GB/T 22766.1-2022家用和类似用途电器售后服务第1部分:通用要求国家标准
英文:After-sales service of household and similar electrical appliances—Part 1:General requirement GB/T 22766.1-2022介绍: 国家...
英文:After-sales service of household and similar electrical appliances—Part 1:General requirement GB/T 22766.1-2022介绍: 国家...