JJC series insulating Piercing clamp,bimetallic water proof tap, power fitting 1.Type: JJC 2.ISO-9001 certificate Products UseJJC series piercing connectors are suitable for low-voltage insulated circuitries, used for connection of branch lines led out from the main line, or branching connection of copper-aluminum conductors, reducing conductors and equal-diameter conductors as well as the cable ...