High quality pattern aluminum and good resistance to corrosion, processed by colorful oxidizing, used in conversion from coaxial cables to appliances, mainly in transmission of CATV trunk to branch networks. Free coring tools ensure quick connection and installation. The product is used in aluminum pipe and vertical wrapped cable, its inner and outer conductors are locked tightly by double threads. The port size of this product: 5/8”-24 threads, pin diameter 1.7mm. It is connected with 500 aluminum pipe and vertical wrapped cable.