... quake, pressure, stretch 2.Strong and durable. Belong to Open style mechnical-press sealing tie-in system, widely applied to telecommunication. ... characteristics, suitable for aerial, duct and indoor installationSupport several ways of connection, such as direct access, and distribution.Reliable heat-shrink pressurization, the ... 21-57471000 Ext 825 optical fiber junction box enclosure 2 in and 2 out