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南宁电线电缆厂试制开发的“三峡输电主干线用ＡＣＳＲ－７２０／５０大截面大跨度导线”新产品，经过国家电线电缆质量监督检测中心检测之后，又顺利地通过了国家机械工业局、国家电力工业公司组织的新产品新技术鉴定。 检测和鉴定表明，南宁电线电缆厂试制开发的ＡＣＳＲ－７
The new product “ACSR-720/50 large-span cross-section conductors for the Three Gorges Power Transmission Main Line” trial-developed by the Nanning Wire and Cable Factory passed the inspection of the National Wire and Cable Quality Supervision and Inspection Center and passed the National Machinery Industry Bureau and the State Power. New products and technologies identified by industrial companies. Testing and identification show that ACSR-7 trial-produced by Nanning Wire and Cable Factory