NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
YDJ 35-1981
長途通信明線載波電話設備安裝工程施工及驗收技術規範 Technical specifications for Installation engineering construction and acceptance of long-distance communication open-wire carrier telephone equipment
Issued Date:
Implemented Date:
Issued by:
The Standardization Administration of the People's Republic of China