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 China 'YDJ 7-1984 ' standard english version summary:

 

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

YDJ 7-1984

Specification for installation design of crossbar system urban local telephone exchange equipment
纵横制市内电话交换设备安装设计规范

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Issued by:   The Standardization Administration of the People's Republic of China
 
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GB Standard Code YDJ 7-1984
Standard Category China Telecommunication Standards
GB Standard English Title Specification for installation design of crossbar system urban local telephone exchange equipment
GB Standard Chinese Title 纵横制市内电话交换设备安装设计规范
Chinese Version Price $1.00  per 1 page
English Translation Fee $15.00~$30.00   per 1 page
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