With the continuous development of information technology in our country

the idea of environmental protection and energy saving should be taken into consideration in the network construction.Traditional optical cable core and optical cable tube filled with ointment can bring a lot of benefits to users.While the optical cable core and the Optical fiber filled with ointment needs to be cleaned when optical cable spicing

especially in indoor operating

the process is time-wasted and environmental unfriendly in engineering application.This paper mainly introduces a kind of flexible totally dry micro-duct cables and its advantages

manufacturing technology and performance specification and so on.