GB/T 4214.9-2021家用和类似用途电器噪声测试方法风扇的特殊要求标准
英文:Test method for noise of household and similar electrical appliances—Particular requirements for fans GB/T 4214.9-202...
英文:Test method for noise of household and similar electrical appliances—Particular requirements for fans GB/T 4214.9-202...