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由冶金工业部沈阳铝镁设计研究院研究设计的、宜昌地区电工仪表厂试制的 PZ—43型电压小时计鉴定会,在湖北省机械局和宜昌地区工业局共
By the Ministry of Metallurgical Industry Shenyang Institute of Design and Research Institute of Aluminum and Magnesium, Yichang Electric Instrument Factory pilot PZ-43-type voltage meter appraisal meeting in Hubei Province Machinery Bureau and Yichang Industrial Bureau of the total