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１９９７年第三季度电压继电器产品质量国家监督抽查公告国家继电器质量监督检验中心（１９９７年９月１５日）由国家继电器质量监督检验中心承担的１９９７年第三季度电压继电器产品质量国家监督抽查工作已全部结束。本次共抽查了２０家企业生产的２１种样品，样品的生产...
In the third quarter of 1997, the national quality supervision and inspection of voltage relay product quality was announced by the National Relay Quality Supervision and Inspection Center (September 15, 1997). The National Relay Quality Supervision and Inspection Center assumed the third quarter of 1997. All ends. A total of 21 samples produced by 20 companies were sampled for the production of samples.