All kinds of fire detection optical fiber ends
We can design and produce various optical fibers according to different requirements for users.
We can design and produce various optical fibers according to different requirements for users.
TEL：010－83152647
E_mail:bjjsgd@126.com ADRESS：西城区核桃园西街36号 北方长城光电大厦407室 京ICP备11029820号-1
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