GB 4706.90-2014家用和类似用途电器的安全 商用微波炉的特殊要求 Household and similar electrical appliances—Safety—Particular requirements for commercial microwave ovens GB4706.21-2008 家用和类似用途电器的安全 微波炉,包括组合型微波炉的特殊要求 Household and similar electrical appliances - Safety - Particular requirements for microwave ovens, including combination microwave ovens