GB/T 39505-2020家用电理发剪及修发器性能测试方法标准
英文:Method of measuring performances of electric hair clippers or trimmers for household use GB/T 39505-2020介绍: 国家标准《家用电理...
英文:Method of measuring performances of electric hair clippers or trimmers for household use GB/T 39505-2020介绍: 国家标准《家用电理...