... Wire Connectors,wire connectors,wire joint:Inside material: made of copper tube T1,the surface is silver-gilt Close-End Wire Connectors,Wire Joint,wire ... connections between wires. 2.Just strip off the wire and insert securely inside the connector, crimp by appropriate crimping tool. ... certificated by ULInside material: made of copper tube T1,the surface is silver-giltTrail: nylon shell,long copper ...