... 120cores It is widely used for communication, network system, cabled T.V. of CATV, the fiber optic ... by network Components: Seal tape, Insulation tape, Nylon tie, heat shrinkable sleeve, metal hook, seal fittings, ... years.It is widely used for communication, network system, cabled T.V. of CATV, the fiber ... : It is belonged to open structure airproof tie-in system of machine pressure. It is used for ...