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GB 12971.4-1991  China national standard english version:

　
GB
中华人民共和国国家标准
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB 12971.4-1991

Trolley and contact wires for electric traction--Part 4:Aluminium-steel and aluminium alloy composite trolley and content wires
电力牵引用接触线 第四部分:钢、铝及铝合金复合接触线
Issued Date:1991-06-06 　 Implemented Date:1992-03-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB 12971.4-1991
Standard Category China National Standards
GB Standard English Title Trolley and contact wires for electric traction--Part 4:Aluminium-steel and aluminium alloy composite trolley and content wires
GB Standard Chinese Title 电力牵引用接触线 第四部分:钢、铝及铝合金复合接触线
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English Translation Fee $15.00~$30.00   per 1 page
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