* Material of loose tube has good mechanical properties and temperature characteristics
* Material of loose tube has good hydrolysis resistance and high strength
* The tube is filled with special filler to provide critical protection for the fiber
* Good lateral pressure resistance and softness
* Double chrome plating plastic-coated steel tape (PSP) improves the moisture resistance of optical cables
* The two parallel steel wires provides enough tensile strength
* Small diameter, light weight, easy for laying