$10
Fibre optic branching devices Part 1:Generic specification(可供认证用)
EQV IEC 875/1-86
邮电部电信传输研究所
This standard is the original Chinese electronic standard.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
After you successfully purchase, we will send the electronic version of this standard to your email address